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lftp(1)                                                                lftp(1)



NAME
       lftp - Sophisticated file transfer program

SYNTAX
       lftp [-d] [-e cmd] [-p port] [-u user[,pass]] [site]
       lftp -f script_file
       lftp -c commands
       lftp --version
       lftp --help


VERSION
       This man page documents lftp version 4.4.0.


DESCRIPTION
       lftp  is  a  file transfer program that allows sophisticated ftp, http and other connections to other hosts. If
       site is specified then lftp will connect to that site otherwise a connection has to  be  established  with  the
       open command.

       lftp can handle several file access methods - ftp, ftps, http, https, hftp, fish, sftp and file (https and ftps
       are only available when lftp is compiled with GNU TLS or OpenSSL library). You can specify the method to use in
       'open  URL'  command,  e.g. 'open http://www.us.kernel.org/pub/linux'. hftp is ftp-over-http-proxy protocol. It
       can be used automatically instead of ftp if ftp:proxy is set to 'http://proxy[:port]'. Fish is a protocol work-
       ing over an ssh connection to a unix account. SFtp is a protocol implemented in ssh2 as sftp subsystem.

       Besides FTP-like protocols, lftp has support for BitTorrent protocol as 'torrent' command. Seeding is also sup-
       ported.


       Every operation in lftp is reliable, that is any not fatal error is ignored and the operation is  repeated.  So
       if  downloading  breaks, it will be restarted from the point automatically. Even if ftp server does not support
       REST command, lftp will try to retrieve the file from the very beginning until the  file  is  transferred  com-
       pletely.

       lftp has shell-like command syntax allowing you to launch several commands in parallel in background (&). It is
       also possible to group commands within () and execute them in background. All background jobs are  executed  in
       the  same  single  process.  You  can  bring a foreground job to background with ^Z (c-z) and back with command
       'wait' (or 'fg' which is alias to 'wait'). To list running jobs, use command 'jobs'. Some commands allow  redi-
       recting  their  output  (cat, ls, ...) to file or via pipe to external command. Commands can be executed condi-
       tionally based on termination status of previous command (&&, ||).

       If you exit lftp when some jobs are not finished yet, lftp will move itself to nohup mode  in  background.  The
       same happens when you have a real modem hangup or when you close an xterm.

       lftp  has  built-in  mirror  which  can download or update a whole directory tree. There is also reverse mirror
       (mirror -R) which uploads or updates a directory tree  on  server.  Mirror  can  also  synchronize  directories
       between two remote servers, using FXP if available.

       There  is  command 'at' to launch a job at specified time in current context, command 'queue' to queue commands
       for sequential execution for current server, and much more.

       On startup, lftp executes /etc/lftp.conf and then ~/.lftprc and ~/.lftp/rc. You can  place  aliases  and  'set'
       commands  there. Some people prefer to see full protocol debug, use 'debug' to turn the debug on. Use 'debug 3'
       to see only greeting messages and error messages.

       lftp has a number of settable variables. You can use 'set -a' to see all variables and their values or 'set -d'
       to  see  list of defaults.  Variable names can be abbreviated and prefix can be omitted unless the rest becomes
       ambiguous.

       If lftp was compiled with OpenSSL (configure --with-openssl),  then  it  includes  software  developed  by  the
       OpenSSL Project for use in the OpenSSL Toolkit. (http://www.openssl.org/)


   Commands
       ! shell command

       Launch shell or shell command.

            !ls

       To do a directory listing of the local host.

       alias  [name [value]]

       Define  or  undefine alias name. If value is omitted, the alias is undefined, else it takes the value value. If
       no argument is given the current aliases are listed.

            alias dir ls -lF
            alias less zmore

       at time [ -- command ]

       Wait until the given time and execute given (optional) command. See also at(1).

       attach  [PID]

       Attach the terminal to specified backgrounded lftp process.

       bookmark  [subcommand]

       The bookmark command controls bookmarks.

       Site names can be used in the open command directly as-is or in any command that accepts input URLs  using  the
       bm:site/path format.


       cache  [subcommand]

       The cache command controls local memory cache.  The following subcommands are recognized:


       cat files

       cat outputs the remote file(s) to stdout.  (See also more, zcat and zmore)

       cd rdir

       Change  current  remote directory.  The previous remote directory is stored as '-'. You can do 'cd -' to change
       the directory back.  The previous directory for each site is also stored on disk, so you can do 'open site;  cd
       -' even after lftp restart.

       chmod mode files

       Change permission mask on remote files. The mode must be an octal number.

       close [-a]

       Close idle connections.  By default only with the current server, use -a to close all idle connections.

       cls [OPTS] files...

       'cls'  tries to retrieve information about specified files or directories and outputs the information according
       to format options. The difference between 'ls' and 'cls' is that 'ls' requests the server to format file  list-
       ing, and 'cls' formats it itself, after retrieving all the needed information.  See 'help cls' for options.

       command cmd args...

       execute given command ignoring aliases.

       debug [-o file] level|off

       Switch debugging to level or turn it off.  Use -o to redirect the debug output to a file.

       echo [-n] string

       guess what it does.

       eval [-f format ] args...

       without  -f  it  just executes given arguments as a command. With -f, arguments are transformed into a new com-
       mand. The format can contain plain text and placeholders $0...$9 and $@, corresponding to the arguments.

       exit [bg] [top] [kill] [code]

       exit will exit from lftp or move to background if there are active jobs. If no job is active, code is passed to
       operating system as lftp's termination status. If code is omitted, the exit code of last command is used.

       'exit  bg'  forces  moving to background when cmd:move-background is false.  'exit top' makes top level 'shell'
       (internal lftp command executor) terminate.  'exit kill' kills all numbered jobs before  exiting.  The  options
       can be combined, e.g.  'at 08:00 -- exit top kill &' kills all jobs and makes lftp exit at specified time.

       fg

       Alias for 'wait'.

       find  [directory]

       List  files in the directory (current directory by default) recursively.  This can help with servers lacking ls
       -R support. You can redirect output of this command.

       ftpcopy

       Obsolete. Use one of the following instead:
            get ftp://... -o ftp://...
            get -O ftp://... file1 file2...
            put ftp://...
            mput ftp://.../*
            mget -O ftp://... ftp://.../*
       or other combinations to get FXP transfer (directly between two ftp servers).  lftp  would  fallback  to  plain
       copy (via client) if FXP transfer cannot be initiated or ftp:use-fxp is false.

       get [-E] [-a] [-c] [-e] [-O base] rfile [-o lfile] ...

       Retrieve  the  remote file rfile and store it as the local file lfile.  If -o is omitted, the file is stored to
       local file named as base name of rfile. You can get multiple files by specifying multiple  instances  of  rfile
       (and -o lfile). Does not expand wildcards, use mget for that.


       Examples:
            get README
            get README -o debian.README
            get README README.mirrors
            get README -o debian.README README.mirrors -o debian.mirrors
            get README -o ftp://some.host.org/debian.README
            get README -o ftp://some.host.org/debian-dir/   (end slash is important)

       get1 [OPTS] rfile

       Transfer a single file. Options:


       glob [-d] [-a] [-f] command patterns

       Glob given patterns containing metacharacters and pass result to given command.  E.g. ''glob echo *''.


       help [cmd]

       Print help for cmd or if no cmd was specified print a list of available commands.

       jobs [-v]

       List running jobs. -v means verbose, several -v can be specified.

       kill all|job_no

       Delete specified job with job_no or all jobs.  (For job_no see jobs)

       lcd ldir

       Change  current  local  directory  ldir.  The  previous local directory is stored as '-'. You can do 'lcd -' to
       change the directory back.

       ln [-s] existing-file new-link

       Make a hard/symbolic link to an existing file.  Option -s selects creation of a symbolic link.

       local command

       Run specified command with local directory file:// session instead of remote session. Examples:
            local pwd
            local ls
            local mirror /dir1 /dir2

       lpwd

       Print current working directory on local machine.

       ls params

       List remote files. You can redirect output of this command to  file  or  via  pipe  to  external  command.   By
       default, ls output is cached, to see new listing use rels or cache flush.

       mget [-c] [-d] [-a] [-E] [-O base] files

       Gets selected files with expanded wildcards.



       mirror [OPTS] [source [target]]

       Mirror  specified source directory to local target directory. If target directory ends with a slash, the source
       base name is appended to target directory name. Source and/or target can be URLs pointing to directories.



       When using -R, the first directory is local and the second is remote.  If the second directory is omitted, base
       name  of  first  directory  is used.  If both directories are omitted, current local and remote directories are
       used.  If target directory ends with a slash (except root directory) then base  name  of  source  directory  is
       appended.

       RX is an extended regular expression, just like in egrep(1).

       GP is a glob pattern, e.g. '*.zip'.

       Include  and  exclude  options can be specified multiple times. It means that a file or directory would be mir-
       rored if it matches an include and does not match to excludes after the include, or does not match anything and
       the first check is exclude. Directories are matched with a slash appended.

       Note that symbolic links are not created when uploading to remote server, because ftp protocol cannot do it. To
       upload files the links refer to, use 'mirror -RL' command (treat symbolic links as files).

       For options --newer-than and --older-than you can either specify a file or time specification like that used by
       at(1) command, e.g.  'now-7days' or 'week ago'. If you specify a file, then modification time of that file will
       be used.

       Verbosity level can be selected using --verbose=level option or by several -v options, e.g. -vvv. Levels are:
            0 - no output (default)
            1 - print actions
            2 - +print not deleted file names (when -e is not specified)
            3 - +print directory names which are mirrored

       --only-newer turns off file size comparison and uploads/downloads only newer files even if size  is  different.
       By default older files are transferred and replace newer ones.

       You  can  mirror between two servers if you specify URLs instead of directories.  FXP is used automatically for
       transfers between ftp servers, if possible.

       Some ftp servers hide dot-files by default (e.g. .htaccess), and show them only when LIST command is used  with
       -a option. In such case try to use 'set ftp:list-options -a'.

       mkdir [-p] dir(s)

       Make remote directories. If -p is used, make all components of paths.

       module module [ args ]

       Load given module using dlopen(3) function. If module name does not contain a slash, it is searched in directo-
       ries specified by module:path variable.  Arguments are passed to module_init function. See  README.modules  for
       technical details.

       more files

       Same as 'cat files | more'. if PAGER is set, it is used as filter.  (See also cat, zcat and zmore)

       mput [-c] [-d] [-a] [-E] [-O base] files

       Upload files with wildcard expansion. By default it uses the base name of local name as remote one. This can be
       changed by '-d' option.


       mrm file(s)

       Same as 'glob rm'. Removes specified file(s) with wildcard expansion.

       mv file1 file2

       Rename file1 to file2.

       nlist [args]

       List remote file names

       open [-e cmd] [-u user[,pass]] [-p port] host|url

       Select an ftp server.

       pget [OPTS] rfile [-o lfile]

       Gets the specified file using several connections. This can speed up transfer, but loads  the  net  and  server
       heavily impacting other users. Use only if you really have to transfer the file ASAP.  Options:


       put [-E] [-a] [-c] [-O base] lfile [-o rfile]

       Upload  lfile  with  remote  name rfile. If -o omitted, the base name of lfile is used as remote name. Does not
       expand wildcards, use mput for that.


       pwd [-p]

       Print current remote URL. Use '-p' option to show password in the URL.

       queue [-n num ] cmd

       Add the given command to queue for sequential execution. Each site has its own queue.  '-n'  adds  the  command
       before  the given item in the queue. Don't try to queue 'cd' or 'lcd' commands, it may confuse lftp. Instead do
       the cd/lcd before 'queue' command, and it will remember the place in which the command is to  be  done.  It  is
       possible  to  queue up an already running job by 'queue wait <jobno>', but the job will continue execution even
       if it is not the first in queue.

       'queue stop' will stop the queue, it will not execute any new commands, but already running jobs will  continue
       to  run.  You can use 'queue stop' to create an empty stopped queue. 'queue start' will resume queue execution.
       When you exit lftp, it will start all stopped queues automatically.

       'queue' with no arguments will either create a stopped queue or print queue status.

       queue --delete|-d [index or wildcard expression]

       Delete one or more items from the queue. If no argument is given, the last entry in the queue is deleted.

       queue --move|-m <index or wildcard expression> [index]

       Move the given items before the given queue index, or to the end if no destination is given.



       Examples:
            > get file &
            [1] get file
            > queue wait 1
            > queue get another_file
            > cd a_directory
            > queue get yet_another_file



       quote cmd

       For FTP - send the command uninterpreted. Use with caution - it can lead to unknown remote state and thus  will
       cause reconnect. You cannot be sure that any change of remote state because of quoted command is solid - it can
       be reset by reconnect at any time.

       For HTTP - specific to HTTP action. Syntax: ''quote <command> [<args>]''.  Command  may  be  ''set-cookie''  or
       ''post''.
            open http://www.site.net
            quote set-cookie "variable=value; othervar=othervalue"
            set http:post-content-type application/x-www-form-urlencoded
            quote post /cgi-bin/script.cgi "var=value&othervar=othervalue" > local_file

       For  FISH  - send the command uninterpreted. This can be used to execute arbitrary commands on server. The com-
       mand must not take input or print ### at new line beginning. If it does, the protocol will become out of  sync.
            open fish://server
            quote find -name \*.zip

       reget rfile [-o lfile]

       Same as 'get -c'.

       rels [args]

       Same as 'ls', but ignores the cache.

       renlist [args]

       Same as 'nlist', but ignores the cache.

       repeat [OPTS] [[-d] delay] [command]

       Repeat  specified  command  with  a  delay between iterations.  Default delay is one second, default command is
       empty.



       Examples:
            repeat at tomorrow -- mirror
            repeat 1d mirror

       reput lfile [-o rfile]

       Same as 'put -c'.

       rm [-r] [-f] files

       Remove remote files.  Does not expand wildcards, use mrm for that. -r is for  recursive  directory  remove.  Be
       careful, if something goes wrong you can lose files. -f suppress error messages.

       rmdir dir(s)

       Remove remote directories.

       scache [session]

       List cached sessions or switch to specified session.

       set [var [val]]

       Set variable to given value. If the value is omitted, unset the variable.  Variable name has format ''name/clo-
       sure'', where closure can specify exact application of the setting. See below for details.  If  set  is  called
       with no variable then only altered settings are listed.  It can be changed by options:



       site site_cmd

       Execute site command site_cmd and output the result.  You can redirect its output.

       sleep interval

       Sleep  given  time interval and exit. Interval is in seconds by default, but can be suffixed with 'm', 'h', 'd'
       for minutes, hours and days respectively.  See also at.

       slot [name]

       Select specified slot or list all slots allocated. A slot is a connection to a server, somewhat like a  virtual
       console. You can create multiple slots connected to different servers and switch between them. You can also use
       slot:name as a pseudo-URL evaluating to that slot location.

       Default readline binding allows quick switching between slots named 0-9 using Meta-0 - Meta-9 keys  (often  you
       can use Alt instead of Meta).

       source file
       source -e command

       Execute commands recorded in file file or returned by specified external command.
            source ~/.lftp/rc
            source -e echo help

       suspend

       Stop  lftp  process. Note that transfers will be also stopped until you continue the process with shell's fg or
       bg commands.

       torrent [OPTS] torrent-files...

       Start BitTorrent process for the given torrent-files, which can be a local file,  URL,  magnet  link  or  plain
       info_hash  written  in  hex.   Local  wildcards  are  expanded.  Existing  files  are  first  validated  unless
       --force-valid option is given. Missing pieces are downloaded. Files are stored in specified directory  or  cur-
       rent  working  directory by default. Seeding continues until ratio reachs torrent:stop-on-ratio setting or time
       of torrent:seed-max-time outs.

       Options:


       user user [pass]
       user URL [pass]

       Use specified info for remote login. If you specify an URL with user name, the entered password will be  cached
       so that future URL references can use it.

       version

       Print lftp version.

       wait [jobno]
       wait all

       Wait for specified job to terminate. If jobno is omitted, wait for last backgrounded job.

       'wait all' waits for all jobs termination.

       zcat files

       Same as cat, but filter each file through zcat. (See also cat, more and zmore)

       zmore files

       Same as more, but filter each file through zcat. (See also cat, zcat and more)


   Settings
       On  startup, lftp executes ~/.lftprc and ~/.lftp/rc.  You can place aliases and 'set' commands there. Some peo-
       ple prefer to see full protocol debug, use 'debug' to turn the debug on.

       There is also a system-wide startup file in /etc/lftp.conf.  It can be in different directory, see  FILES  sec-
       tion.

       lftp has the following settable variables (you can also use 'set -a' to see all variables and their values):

       bmk:save-passwords (boolean)
              save plain text passwords in ~/.lftp/bookmarks on 'bookmark add' command.  Off by default.

       cmd:at-exit (string)
              the commands in string are executed before lftp exits.

       cmd:at-exit-bg (string)
              the commands in string are executed before backgrounded lftp exits.

       cmd:at-finish (string)
              the commands in string are executed once when all jobs are done.

       cmd:at-queue-finish (string)
              the commands in string are executed once when all jobs in a queue are done.

       cmd:csh-history (boolean)
              enables csh-like history expansion.

       cmd:default-protocol (string)
              The value is used when 'open' is used with just host name without protocol. Default is 'ftp'.

       cmd:fail-exit (boolean)
              if true, exit when an unconditional (without || and && at begin) command fails.

       cmd:interactive (boolean)
              when  true,  lftp  acts interactively, handles terminal signals and outputs some extra messages. Default
              depends on stdin being a terminal.

       cmd:long-running (seconds)
              time of command execution, which is considered as 'long' and a beep is done before next prompt. 0  means
              off.

       cmd:ls-default (string)
              default ls argument

       cmd:move-background (boolean)
              when false, lftp refuses to go to background when exiting. To force it, use 'exit bg'.

       cmd:move-background-detach (boolean)
              when  true  (default),  lftp  detaches itself from the control terminal when moving to background, it is
              possible to attach back using 'attach' command; when false, lftp tricks the shell to move lftp to  back-
              ground  process  group and continues to run, then fg shell command brings lftp back to foreground unless
              it has done all jobs and terminated.

       cmd:prompt (string)
              The prompt. lftp recognizes the following backslash-escaped special characters that are decoded as  fol-
              lows:
              \@     insert @ if current user is not default
              \a     an ASCII bell character (07)
              \e     an ASCII escape character (033)
              \h     the hostname you are connected to
              \n     newline
              \s     the name of the client (lftp)
              \S     current slot name
              \u     the username of the user you are logged in as
              \U     the URL of the remote site (e.g., ftp://g437.ub.gu.se/home/james/src/lftp)
              \v     the version of lftp (e.g., 2.0.3)
              \w     the current working directory at the remote site
              \W     the base name of the current working directory at the remote site
              \nnn   the character corresponding to the octal number nnn
              \\     a backslash
              \?     skips next character if previous substitution was empty.
              \[     begin  a  sequence  of  non-printing  characters, which could be used to embed a terminal control
                     sequence into the prompt
              \]     end a sequence of non-printing characters


       cmd:parallel (number)
              Number of jobs run in parallel in non-interactive mode. For example, this may be useful for scripts with
              multiple  'get' commands. Note that setting this to a value greater than 1 changes conditional execution
              behaviour, basically makes it inconsistent.

       cmd:queue-parallel (number)
              Number of jobs run in parallel in a queue.

       cmd:save-cwd-history (boolean)
              when true, lftp saves last CWD of each site to ~/.lftp/cwd_history, allowing to do ''cd -''  after  lftp
              restart. Default is true.

       cmd:save-rl-history (boolean)
              when true, lftp saves readline history to ~/.lftp/rl_history on exit.  Default is true.

       cmd:set-term-status (boolean)
              when  true,  lftp updates terminal status if supported (e.g. xterm). The closure for this setting is the
              terminal type from TERM environment variable.

       cmd:status-interval (timeinterval)
              the time interval between status updates.

       cmd:stifle-rl-history (number)
              the number of lines to keep in readline history.

       cmd:term-status (string)
              the format string to use to display terminal status. The closure for this setting is the  terminal  type
              from TERM environment variable. Default uses ''tsl'' and ''fsl'' termcap values.

              The following escapes are supported:


       cmd:time-style (string)
              This setting is the default value for cls --time-style option.

       cmd:trace (boolean)
              when true, lftp prints the commands it executes (like sh -x).

       cache:cache-empty-listings (boolean)
              When false, empty listings are not cached.

       cache:enable (boolean)
              When false, cache is disabled.

       cache:expire (time interval)
              Positive cache entries expire in this time interval.

       cache:expire-negative (time interval)
              Negative cache entries expire in this time interval.

       cache:size (number)
              Maximum cache size. When exceeded, oldest cache entries will be removed from cache.

       cmd:remote-completion (boolean)
              a boolean to control whether or not lftp uses remote completion.

       cmd:verify-host (boolean)
              if  true,  lftp resolves host name immediately in 'open' command.  It is also possible to skip the check
              for a single 'open' command if '&' is given, or if ^Z is pressed during the check.

       cmd:verify-path (boolean)
              if true, lftp checks the path given in 'cd' command.  It is also possible to skip the check for a single
              'cd' command if '&' is given, or if ^Z is pressed during the check.  Examples:
                   set cmd:verify-path/hftp://* false
                   cd directory &

       cmd:verify-path-cached (boolean)
              When  false,  'cd'  to a directory known from cache as existent will succeed immediately.  Otherwise the
              verification will depend on cmd:verify-path setting.

       color:use-color (tri-boolean)
              when true, cls command and completion output colored file listings according  to  color:dir-colors  set-
              ting.  When set to auto, colors are used when output is a terminal.

       color:dir-colors (string)
              file listing color description. By default the value of LS_COLORS environment variable is used. See dir-
              colors(1).

       dns:SRV-query (boolean)
              query for SRV records and use them before gethostbyname. The SRV records are only used if  port  is  not
              explicitly specified. See RFC2052 for details.

       dns:cache-enable (boolean)
              enable DNS cache. If it is off, lftp resolves host name each time it reconnects.

       dns:cache-expire (time interval)
              time to live for DNS cache entries. It has format <number><unit>+, e.g.  1d12h30m5s or just 36h. To dis-
              able expiration, set it to 'inf' or 'never'.

       dns:cache-size (number)
              maximum number of DNS cache entries.

       dns:fatal-timeout (time interval)
              limit the time for DNS queries. If DNS server is unavailable too long, lftp will fail to resolve a given
              host name. Set to 'never' to disable.

       dns:order (list of protocol names)
              sets the order of DNS queries. Default is ''inet6 inet'' which means first look up address in inet6 fam-
              ily, then inet and use them in that order.  To  disable  inet6  (AAAA)  lookup,  set  this  variable  to
              ''inet''.

       dns:use-fork (boolean)
              if true, lftp will fork before resolving host address. Default is true.

       dns:max-retries (number)
              If zero, there is no limit on the number of times lftp will try to lookup an address.  If > 0, lftp will
              try only this number of times to look up an address of each address family in dns:order.

       file:charset (string)
              local character set. It is set from current locale initially.

       fish:charset (string)
              the character set used by fish server in requests, replies and file listings.  Default  is  empty  which
              means the same as local.

       fish:connect-program (string)
              the  program  to  use for connecting to remote server. It should support '-l' option for user name, '-p'
              for port number. Default is 'ssh -a -x'. You can set it to 'rsh', for example.

       fish:shell (string)
              use specified shell on server side. Default is /bin/sh. On some systems, /bin/sh exits when doing cd  to
              a  non-existent  directory.  lftp  can handle that but it has to reconnect. Set it to /bin/bash for such
              systems if bash is installed.

       ftp:acct (string)
              Send this string in ACCT command after login. The result is ignored.  The closure for this  setting  has
              format user@host.

       ftp:anon-pass (string)
              sets the password used for anonymous ftp access authentication.  Default is "lftp@".

       ftp:anon-user (string)
              sets the user name used for anonymous ftp access authentication.  Default is "anonymous".

       ftp:auto-sync-mode (regex)
              if first server message matches this regex, turn on sync mode for that host.

       ftp:charset (string)
              the  character  set  used  by ftp server in requests, replies and file listings.  Default is empty which
              means the same as local. This setting is only used when the server does not support UTF8.

       ftp:client (string)
              the name of ftp client to send with CLNT command, if supported by server.  If it is empty, then no  CLNT
              command will be sent.

       ftp:bind-data-socket (boolean)
              bind  data  socket to the interface of control connection (in passive mode).  Default is true, exception
              is the loopback interface.

       ftp:fix-pasv-address (boolean)
              if true, lftp will try to correct address returned by server  for  PASV  command  in  case  when  server
              address is in public network and PASV returns an address from a private network. In this case lftp would
              substitute server address instead of the one returned by PASV command, port number would not be changed.
              Default is true.

       ftp:fxp-passive-source (boolean)
              if  true, lftp will try to set up source ftp server in passive mode first, otherwise destination one. If
              first attempt fails, lftp tries to set them up the other way. If the other disposition fails  too,  lftp
              falls back to plain copy. See also ftp:use-fxp.

       ftp:home (string)
              Initial  directory. Default is empty string which means auto. Set this to '/' if you don't like the look
              of %2F in ftp URLs. The closure for this setting has format user@host.

       ftp:ignore-pasv-address (boolean)
              If true, lftp uses control connection address instead of the one returned in PASV reply for data connec-
              tion. This can be useful for broken NATs.  Default is false.

       ftp:list-empty-ok (boolean)
              if  set  to false, empty lists from LIST command will be treated as incorrect, and another method (NLST)
              will be used.

       ftp:list-options (string)
              sets options which are always appended to LIST command. It can be useful to set this to '-a'  if  server
              does not show dot (hidden) files by default.  Default is empty.

       ftp:nop-interval (seconds)
              delay  between  NOOP commands when downloading tail of a file. This is useful for ftp servers which send
              "Transfer complete" message before flushing data transfer. In such cases NOOP commands can prevent  con-
              nection timeout.

       ftp:passive-mode (boolean)
              sets passive ftp mode. This can be useful if you are behind a firewall or a dumb masquerading router. In
              passive mode lftp uses PASV command, not the PORT command which is used in active mode. In passive  mode
              lftp itself makes the data connection to the server; in active mode the server connects to lftp for data
              transfer. Passive mode is the default.

       ftp:port-ipv4 (ipv4 address)
              specifies an IPv4 address to send with PORT command. Default is empty which means to send the address of
              local end of control connection.

       ftp:port-range (from-to)
              allowed port range for active mode.  Format is min-max, or 'full' or 'any' to indicate any port. Default
              is 'full'.

       ftp:prefer-epsv (boolean)
              use EPSV as preferred passive mode. Default is 'false'.

       ftp:proxy (URL)
              specifies ftp proxy to use.  To disable proxy set this to empty string. Note that it  is  an  ftp  proxy
              which  uses  ftp protocol, not ftp over http. Default value is taken from environment variable ftp_proxy
              if it starts with ''ftp://''. If your ftp proxy requires authentication, specify user name and  password
              in  the  URL.  If ftp:proxy starts with http:// then hftp protocol (ftp over http proxy) is used instead
              of ftp automatically.

       ftp:proxy-auth-type (string)
              When set to ''joined'', lftp sends  ''user@proxy_userATftp.org''  as  user  name  to  proxy,  and
              ''password@proxy_password'' as password.

              When set to ''joined-acct'', lftp sends ''userATftp.org proxy_user'' (with space) as user name to
              proxy. The site password is sent as usual and the proxy password is expected in the following ACCT  com-
              mand.

              When  set  to ''open'', lftp first sends proxy user and proxy password and then ''OPEN ftp.example.org''
              followed by ''USER user''.  The site password is then sent as usual.

              When set to ''user'' (default), lftp first sends proxy user and proxy password and then ''userATftp.exam-
              ple.org'' as user name.  The site password is then sent as usual.

              When  set to ''proxy-user@host'', lftp first sends ''USER proxy_userATftp.org'', then proxy pass-
              word. The site user and password are then sent as usual.

       ftp:rest-list (boolean)
              allow usage of REST command before LIST command. This might be useful for large  directories,  but  some
              ftp servers silently ignore REST before LIST.

       ftp:rest-stor (boolean)
              if  false,  lftp  will  not try to use REST before STOR. This can be useful for some buggy servers which
              corrupt (fill with zeros) the file if REST followed by STOR is used.

       ftp:retry-530 (regex)
              Retry on server reply 530 for PASS command if text matches this regular expression.  This setting should
              be  useful to distinguish between overloaded server (temporary condition) and incorrect password (perma-
              nent condition).

       ftp:retry-530-anonymous (regex)
              Additional regular expression for anonymous login, like ftp:retry-530.

       ftp:site-group (string)
              Send this string in SITE GROUP command after login. The result is ignored.  The closure for this setting
              has format user@host.

       ftp:skey-allow (boolean)
              allow sending skey/opie reply if server appears to support it. On by default.

       ftp:skey-force (boolean)
              do  not send plain text password over the network, use skey/opie instead. If skey/opie is not available,
              assume failed login. Off by default.

       ftp:ssl-allow (boolean)
              if true, try to negotiate SSL connection with ftp server for non-anonymous access. Default is true. This
              and other ssl settings are only available if lftp was compiled with an ssl/tls library.

       ftp:ssl-data-use-keys (boolean)
              if  true,  lftp  loads  ssl:key-file for protected data connection too. When false, it does not, and the
              server can match data and control connections by session ID.  Default is true.

       ftp:ssl-force (boolean)
              if true, refuse to send password in clear when server does not support SSL.  Default is false.

       ftp:ssl-protect-data (boolean)
              if true, request ssl connection for data transfers. This is cpu-intensive but provides privacy.  Default
              is false.

       ftp:ssl-protect-fxp (boolean)
              if true, request ssl connection for data transfer between two ftp servers in FXP mode. CPSV or SSCN com-
              mand will be used in that case. If ssl connection fails for some reason, lftp would try unprotected  FXP
              transfer unless ftp:ssl-force is set for any of the two servers. Default is false.

       ftp:ssl-protect-list (boolean)
              if true, request ssl connection for file list transfers. Default is true.

       ftp:ssl-use-ccc (boolean)
              if  true, lftp would issue CCC command after logon, thus disable ssl protection layer on control connec-
              tion.

       ftp:stat-interval (time interval)
              interval between STAT commands. Default is 1 second.

       ftp:sync-mode (boolean)
              if true, lftp will send one command at a time and wait for response. This might be  useful  if  you  are
              using  a  buggy  ftp  server  or  router.  When  it  is off, lftp sends a pack of commands and waits for
              responses - it speeds up operation when round trip time is significant.  Unfortunately it does not  work
              with all ftp servers and some routers have troubles with it, so it is on by default.

       ftp:timezone (string)
              Assume  this  timezone  for  time  in listings returned by LIST command.  This setting can be GMT offset
              [+|-]HH[:MM[:SS]] or any valid TZ value (e.g. Europe/Moscow or MSK-3MSD,M3.5.0,M10.5.0/3).  The  default
              is GMT.  Set it to an empty value to assume local timezone specified by environment variable TZ.

       ftp:trust-feat (string)
              When  true,  assume  that  FEAT  returned data are correct and don't use common protocol extensions like
              SIZE, MDTM, REST if they are not listed.  Default is false.

       ftp:use-abor (boolean)
              if false, lftp does not send ABOR command but closes data connection immediately.

       ftp:use-allo (boolean)
              when true (default), lftp sends ALLO command before uploading a file.

       ftp:use-feat (boolean)
              when true (default), lftp uses FEAT command to determine extended features of ftp server.

       ftp:use-fxp (boolean)
              if true, lftp will try to set up direct connection between two ftp servers.

       ftp:use-hftp (boolean)
              when ftp:proxy points to an http proxy, this setting selects hftp method (GET, HEAD) when true, and CON-
              NECT method when false. Default is true.

       ftp:use-ip-tos (boolean)
              when true, lftp uses IPTOS_LOWDELAY for control connection and IPTOS_THROUGHPUT for data connections.

       ftp:lang (boolean)
              the  language  selected  with LANG command, if supported as indicated by FEAT response. Default is empty
              which means server default.

       ftp:use-mdtm (boolean)
              when true (default), lftp uses MDTM command to determine file modification time.

       ftp:use-mdtm-overloaded (boolean)
              when true, lftp uses two argument MDTM command to set file modification time on uploaded files.  Default
              is false.

       ftp:use-site-idle (boolean)
              when true, lftp sends 'SITE IDLE' command with net:idle argument. Default is false.

       ftp:use-site-utime (boolean)
              when  true,  lftp sends 5-argument 'SITE UTIME' command to set file modification time on uploaded files.
              Default is true.

       ftp:use-site-utime2 (boolean)
              when true, lftp sends 2-argument 'SITE UTIME' command to set file modification time on  uploaded  files.
              Default is true.  If 5-argument 'SITE UTIME' is also enabled, 2-argument command is tried first.

       ftp:use-size (boolean)
              when true (default), lftp uses SIZE command to determine file size.

       ftp:use-stat (boolean)
              if  true,  lftp  sends STAT command in FXP mode transfer to know how much data has been transferred. See
              also ftp:stat-interval. Default is true.

       ftp:use-stat-for-list (boolean)
              when true, lftp uses STAT instead of LIST command. By default '.' is used as STAT argument. Using  STAT,
              lftp  avoids  creating  data  connection for directory listing. Some servers require special options for
              STAT, use ftp:list-options to specify them (e.g. -la).

       ftp:use-telnet-iac (boolean)
              when true (default), lftp uses TELNET IAC command and follows TELNET protocol as  specified  in  RFC959.
              When  false,  it does not follow TELNET protocol and thus does not double 255 (0xFF, 0377) character and
              does not prefix ABOR and STAT commands with TELNET IP+SYNCH signal.

       ftp:use-tvfs (tri-boolean)
              When set to auto, usage of TVFS feature depends on FEAT  server  reply.  Otherwise  this  setting  tells
              whether use it or not. In short, if a server supports TVFS feature then it uses unix-like paths.

       ftp:use-quit (boolean)
              if true, lftp sends QUIT before disconnecting from ftp server. Default is true.

       ftp:verify-address (boolean)
              verify that data connection comes from the network address of control connection peer. This can possibly
              prevent data connection spoofing which can lead to data corruption. Unfortunately,  this  can  fail  for
              certain  ftp  servers  with  several  network  interfaces, when they do not set outgoing address on data
              socket, so it is disabled by default.

       ftp:verify-port (boolean)
              verify that data connection has port 20 (ftp-data) on its remote end.  This can  possibly  prevent  data
              connection  spoofing  by users of remote host. Unfortunately, too many windows and even unix ftp servers
              forget to set proper port on data connection, thus this check is off by default.

       ftp:web-mode (boolean)
              disconnect after closing data connection. This can be useful for totally broken ftp servers. Default  is
              false.

       ftps:initial-prot (string)
              specifies  initial PROT setting for FTPS connections. Should be one of: C, S, E, P, or empty. Default is
              empty which means unknown, so that lftp will use PROT command unconditionally. If PROT command turns out
              to be unsupported, then Clear mode would be assumed.

       hftp:cache (boolean)
              allow server/proxy side caching for ftp-over-http protocol.

       hftp:cache-control (string)
              specify corresponding HTTP request header.

       hftp:proxy (URL)
              specifies  http  proxy  for  ftp-over-http protocol (hftp). The protocol hftp cannot work without a http
              proxy, obviously.  Default value is  taken  from  environment  variable  ftp_proxy  if  it  starts  with
              ''http://'', otherwise from environment variable http_proxy.  If your ftp proxy requires authentication,
              specify user name and password in the URL.

       hftp:use-allprop (boolean)
              if true, lftp will send '<allprop/>' request body in 'PROPFIND' requests,  otherwise  it  will  send  an
              empty request body.

       hftp:use-authorization (boolean)
              if  set to off, lftp will send password as part of URL to the proxy. This may be required for some prox-
              ies (e.g. M-soft). Default is on, and lftp will send password as part of Authorization header.

       hftp:use-head (boolean)
              if set to off, lftp will try to use 'GET' instead of 'HEAD' for hftp protocol.  While this is slower, it
              may allow lftp to work with some proxies which don't understand or mishandle ''HEAD ftp://'' requests.

       hftp:use-mkcol (boolean)
              if  set  to off, lftp will try to use 'PUT' instead of 'MKCOL' to create directories with hftp protocol.
              Default is off.

       hftp:use-propfind (boolean)
              if set to off, lftp will not try to use 'PROPFIND' to get directory contents with hftp protocol and  use
              'GET' instead. Default is off.

       hftp:use-type (boolean)
              If  set  to  off,  lftp won't try to append ';type=' to URLs passed to proxy.  Some broken proxies don't
              handle it correctly. Default is on.

       http:accept, http:accept-charset, http:accept-language (string)
              specify corresponding HTTP request headers.

       http:authorization (string)
              the authorization to use by default, when no user is specified. The format is ''user:password''. Default
              is empty which means no authorization.

       http:cache (boolean)
              allow server/proxy side caching.

       http:cache-control (string)
              specify corresponding HTTP request header.

       http:cookie (string)
              send this cookie to server. A closure is useful here:
                   set cookie/www.somehost.com "param=value"

       http:post-content-type (string)
              specifies  value  of  Content-Type http request header for POST method.  Default is ''application/x-www-
              form-urlencoded''.

       http:proxy (URL)
              specifies http proxy. It is used when lftp works over http protocol.  Default value is taken from  envi-
              ronment  variable  http_proxy.  If your proxy requires authentication, specify user name and password in
              the URL.

       http:put-method (PUT or POST)
              specifies which http method to use on put.

       http:put-content-type (string)
              specifies value of Content-Type http request header for PUT method.

       http:referer (string)
              specifies value for Referer http request header. Single  dot  '.'  expands  to  current  directory  URL.
              Default is '.'. Set to empty string to disable Referer header.

       http:set-cookies (boolean)
              if true, lftp modifies http:cookie variables when Set-Cookie header is received.

       http:use-allprop (boolean)
              if  true,  lftp  will  send  '<allprop/>' request body in 'PROPFIND' requests, otherwise it will send an
              empty request body.

       http:use-mkcol (boolean)
              if set to off, lftp will try to use 'PUT' instead of 'MKCOL' to create directories with  http  protocol.
              Default is on.

       http:use-propfind (boolean)
              if  set to off, lftp will not try to use 'PROPFIND' to get directory contents with http protocol and use
              'GET' instead. Default is on.

       http:user-agent (string)
              the string lftp sends in User-Agent header of HTTP request.

       https:proxy (string)
              specifies https proxy. Default value is taken from environment variable https_proxy.

       mirror:dereference (boolean)
              when true, mirror will dereference symbolic links by default.  You can override it  by  --no-dereference
              option. Default if false.

       mirror:exclude-regex (regex)
              specifies default exclusion pattern. You can override it by --include option.

       mirror:include-regex (regex)
              specifies  default inclusion pattern. It is used just after mirror:exclude-regex is applied. It is never
              used if mirror:exclude-regex is empty.

       mirror:no-empty-dirs (boolean)
              when true, mirror doesn't create empty directories (like --no-empty-dirs option).

       mirror:order (list of patterns)
              specifies order of file transfers. E.g. setting this to "*.sfv *.sum" makes  mirror  to  transfer  files
              matching  *.sfv  first,  then ones matching *.sum and then all other files. To process directories after
              other files, add "*/" to end of pattern list.

       mirror:parallel-directories (boolean)
              if true, mirror will start processing of several directories in parallel when it is  in  parallel  mode.
              Otherwise, it will transfer files from a single directory before moving to other directories.

       mirror:parallel-transfer-count (number)
              specifies  number  of  parallel transfers mirror is allowed to start. Default is 1.  You can override it
              with --parallel option.

       mirror:set-permissions (boolean)
              When set to off, mirror won't try to copy file and  directory  permissions.   You  can  override  it  by
              --perms option. Default is on.

       mirror:skip-noaccess (boolean)
              when  true,  mirror  does  not  try to download files which are obviously unaccessible by the permission
              mask. Defaule is false.

       mirror:use-pget-n (number)
              specifies -n option for pget command used to transfer every single file under mirror. Default is 1 which
              disables pget.

       module:path (string)
              colon  separated  list  of  directories  to look for modules. Can be initialized by environment variable
              LFTP_MODULE_PATH. Default is 'PKGLIBDIR/VERSION:PKGLIBDIR'.

       net:connection-limit (number)
              maximum number of concurrent connections to the same site. 0 means unlimited.

       net:connection-takeover (boolean)
              if true, foreground connections have priority over background ones and can interrupt  background  trans-
              fers to complete a foreground operation.

       net:idle (time interval)
              disconnect from server after this idle time. Default is 3 minutes.

       net:limit-rate (bytes per second)
              limit  transfer  rate  on  data  connection. 0 means unlimited. You can specify two numbers separated by
              colon to limit download and upload rate separately.  Suffixes are supported, e.g. 100K means 102400.

       net:limit-max (bytes)
              limit accumulating of unused limit-rate. 0 means twice of limit-rate.

       net:limit-total-rate (bytes per second)
              limit transfer rate of all connections in sum. 0 means unlimited. You can specify two numbers  separated
              by  colon to limit download and upload rate separately.  Note that sockets have receive buffers on them,
              this can lead to network link load higher than this rate limit just after transfer  beginning.  You  can
              try to set net:socket-buffer to relatively small value to avoid this.

       net:limit-total-max (bytes)
              limit accumulating of unused limit-total-rate. 0 means twice of limit-total-rate.

       net:max-retries (number)
              the maximum number of sequential retries of an operation without success.  0 means unlimited.

       net:no-proxy (string)
              contains  comma  separated  list  of  domains for which proxy should not be used.  Default is taken from
              environment variable no_proxy.

       net:persist-retries (number)
              ignore this number of hard errors. Useful to login to buggy ftp servers which reply 5xx  when  there  is
              too many users.

       net:reconnect-interval-base (seconds)
              sets  the base minimal time between reconnects. Actual interval depends on net:reconnect-interval-multi-
              plier and number of attempts to perform an operation.

       net:reconnect-interval-max (seconds)
              sets maximum reconnect interval. When current interval after multiplication  by  net:reconnect-interval-
              multiplier reachs this value (or exceeds it), it is reset back to net:reconnect-interval-base.

       net:reconnect-interval-multiplier (real number)
              sets  multiplier  by  which  base  interval  is multiplied each time new attempt to perform an operation
              fails. When the interval reachs maximum, it is reset to base value. See net:reconnect-interval-base  and
              net:reconnect-interval-max.

       net:socket-bind-ipv4 (ipv4 address)
              bind all IPv4 sockets to specified address. This can be useful to select a specific network interface to
              use. Default is empty which means not to bind IPv4 sockets, operating  system  will  choose  an  address
              automatically using routing table.

       net:socket-bind-ipv6 (ipv6 address)
              the same for IPv6 sockets.

       net:socket-buffer (bytes)
              use given size for SO_SNDBUF and SO_RCVBUF socket options. 0 means system default.

       net:socket-maxseg (bytes)
              use  given  size  for TCP_MAXSEG socket option. Not all operating systems support this option, but linux
              does.

       net:timeout (time interval)
              sets the network protocol timeout.

       pget:default-n (number)
              default number of chunks to split the file to in pget.

       pget:save-status (time interval)
              save pget transfer status this often. Set to 'never' to disable saving of the status file.   The  status
              is saved to a file with suffix .lftp-pget-status.

       sftp:charset (string)
              the character set used by sftp server in file names and file listings.  Default is empty which means the
              same as local. This setting is only used for sftp protocol version prior  to  4.  Version  4  and  later
              always use UTF-8.

       sftp:connect-program (string)
              the  program  to  use for connecting to remote server. It should support '-l' option for user name, '-p'
              for port number. Default is 'ssh -a -x'. You can set it to 'rsh', for example.

       sftp:max-packets-in-flight (number)
              The maximum number of unreplied packets in flight.  If  round  trip  time  is  significant,  you  should
              increase this and size-read/size-write. Default is 16.

       sftp:protocol-version (number)
              The protocol number to negotiate. Default is 4. The actual protocol version used depends on server.

       sftp:server-program (string)
              The  server  program  implementing SFTP protocol. If it does not contain a slash '/', it is considered a
              ssh2 subsystem and -s option is used when starting connect-program.  Default is 'sftp'. You can use  rsh
              as transport level protocol like this:
                   set sftp:connect-program rsh
                   set sftp:server-program /usr/libexec/openssh/sftp-server
              Similarly you can run sftp over ssh1.

       sftp:size-read (number)
              Block size for reading. Default is 0x8000.

       sftp:size-write (number)
              Block size for writing. Default is 0x8000.

       ssl:ca-file (path to file)
              use specified file as Certificate Authority certificate.

       ssl:ca-path (path to directory)
              use specified directory as Certificate Authority certificate repository (OpenSSL only).

       ssl:check-hostname (boolean)
              when  true,  lftp  checks if the host name used to connect to the server corresponds to the host name in
              its certificate.

       ssl:crl-file (path to file)
              use specified file as Certificate Revocation List certificate.

       ssl:crl-path (path to directory)
              use specified directory as Certificate Revocation List certificate repository (OpenSSL only).

       ssl:key-file (path to file)
              use specified file as your private key.

       ssl:cert-file (path to file)
              use specified file as your certificate.

       ssl:verify-certificate (boolean)
              if set to yes, then verify server's certificate to be signed by a known Certificate Authority and not be
              on Certificate Revocation List.

       torrent:ip (ipv4 address)
              IP address to send to the tracker. Specify it if you are using an http proxy.

       torrent:ipv6 (ipv6 address)
              IPv6 address to send to the tracker. By default, first found global unicast address is used.

       torrent:max-peers (number)
              maximum number of peers for a torrent. Least used peers are removed to maintain this limit.

       torrent:port-range (from-to)
              port range to accept connections on. A single port is selected when a torrent starts.

       torrent:retracker (URL)
              explicit retracker URL, e.g. 'http://retracker.local/announce'.

       torrent:seed-max-time (time interval)
              maximum  seed  time.  After this period of time a complete torrent shuts down independently of ratio. It
              can be set to infinity if needed.

       torrent:seed-min-peers (number)
              minimum number of peers when the torrent is complete. If there are less, new peers are actively searched
              for.

       torrent:stop-on-ratio (real number)
              torrent stops when it's complete and ratio reached this number.

       torrent:use-dht (boolean)
              when true, DHT is used.

       xfer:clobber (boolean)
              if this setting is off, get commands will not overwrite existing files and generate an error instead.

       xfer:destination-directory (path or URL to directory)
              This setting is used as default -O option for get and mget commands.  Default is empty, which means cur-
              rent directory (no -O option).

       xfer:disk-full-fatal (boolean)
              when true, lftp aborts a transfer if it cannot write target file because of full  disk  or  quota;  when
              false, lftp waits for disk space to be freed.

       xfer:eta-period (seconds)
              the period over which weighted average rate is calculated to produce ETA.

       xfer:eta-terse (boolean)
              show terse ETA (only high order parts). Default is true.

       xfer:log (boolean)
              when true, lftp logs transfers to a file from xfer:log-file setting.

       xfer:log-file (pathtofile)
              the file to log transfers to. Default is ~/.lftp/transfer_log.

       xfer:make-backup (boolean)
              when true, lftp renames pre-existing file adding ''~'' suffix instead of overwriting it.

       xfer:max-redirections (number)
              maximum number of redirections. This can be useful for downloading over HTTP.  0 prohibits redirections.

       xfer:rate-period (seconds)
              the period over which weighted average rate is calculated to be shown.

       xfer:verify (boolean)
              when true, verify-command is launched after successful transfer to validate file  integrity.  Zero  exit
              code of that command should indicate correctness of the file.

       xfer:verify-command (string)
              the command to validate file integrity. The only argument is the path to the file.


       The  name  of  a  variable can be abbreviated unless it becomes ambiguous. The prefix before ':' can be omitted
       too. You can set one variable several times for different closures, and thus you can get a particular  settings
       for particular state. The closure is to be specified after variable name separated with slash '/'.

       The  closure  for  'dns:', 'net:', 'ftp:', 'http:', 'hftp:' domain variables is currently just the host name as
       you specify it in the 'open' command (with some exceptions where closure is meaningless, e.g.  dns:cache-size).
       For  some  'cmd:' domain variables the closure is current URL without path.  For other variables it is not cur-
       rently used. See examples in the sample lftp.conf.

       Certain commands and settings take a time interval parameter. It has the format  Nx[Nx...],  where  N  is  time
       amount (floating point) and x is time unit: d - days, h - hours, m - minutes, s - seconds. Default unit is sec-
       ond. E.g. 5h30m or 5.5h.  Also the interval can be 'infinity', 'inf', 'never', 'forever' -  it  means  infinite
       interval. E.g. 'sleep forever' or 'set dns:cache-expire never'.

       Boolean  settings  can  be one of (true, on, yes, 1, +) for a True value or one of (false, off, no, 0, -) for a
       False value.

       Tri-boolean settings have either a boolean value or 'auto'.

       Integer settings can have a suffix: k - kibi, m - mebi, g - gigi, etc.  They can also have a prefix: 0 - octal,
       0x - hexadecimal.


   FTP asynchronous mode (pipelining)
       Lftp  can  speed up ftp operations by sending several commands at once and then checking all the responses. See
       ftp:sync-mode variable. Sometimes this does not work, thus synchronous mode is the default. You can try to turn
       synchronous  mode  off and see if it works for you. It is known that some network software dealing with address
       translation works incorrectly in the case of several FTP commands in one network packet.

       RFC959 says: ''The user-process sending another command before the completion reply would be  in  violation  of
       protocol;  but  server-FTP  processes  should  queue  any  commands that arrive while a preceding command is in
       progress''. Also, RFC1123 says: ''Implementors MUST NOT assume any correspondence between  READ  boundaries  on
       the  control connection and the Telnet EOL sequences (CR LF).'' and ''a single READ from the control connection
       may include more than one FTP command''.

       So it must be safe to send several commands at once, which speeds up operation a lot and seems to work with all
       Unix  and  VMS  based ftp servers. Unfortunately, windows based servers often cannot handle several commands in
       one packet, and so cannot some broken routers.


OPTIONS
       -d     Switch on debugging mode.

       -e commands
              Execute given commands and don't exit.

       -p port
              Use the given port to connect.

       -u user[,pass]
              Use the given username and password to connect. Remember to quote the password properly  in  the  shell.
              Also  note  that  it is not secure to specify the password on command line, use ~/.netrc file.  Alterna-
              tively you can use ssh-based protocols with authorized keys, so you don't have to enter a password.


       -f script_file
              Execute commands in the file and exit.  This option must be used alone without other arguments.

       -c commands
              Execute the given commands and exit. Commands can be separated with a semicolon, '&&' or '||'.  Remember
              to  quote  the  commands  argument  properly in the shell.  This option must be used alone without other
              arguments.


ENVIRONMENT VARIABLES
       The following environment variables are processed by lftp:

       HOME   Used for (local) tilde ('~') expansion

       SHELL  Used by the ! command to determine the shell to run.

       PAGER  This should be the name of the pager to use.  It's used by the more and zmore commands.

       http_proxy, https_proxy
              Used to set initial http:proxy, hftp:proxy and https:proxy variables.

       ftp_proxy
              Used to set initial ftp:proxy or hftp:proxy variables, depending on URL protocol used in  this  environ-
              ment variable.

       no_proxy
              Used to set initial net:no-proxy variable.

       LFTP_MODULE_PATH
              Used to set initial module:path variable.

       LFTP_HOME
              Used  to  locate the directory that stores user-specific configuration files.  If unset, ~/.lftp will be
              used.

       LS_COLORS
              used to set initial color:dir-colors variable.


FILES
       /etc/lftp.conf
              system-wide startup file. Actual location depends on --sysconfdir configure option. It is /etc when pre-
              fix is /usr, /usr/local/etc by default.


       ~/.lftp/rc, ~/.lftprc
              These files are executed on lftp startup after /etc/lftp.conf.

       ~/.lftp/log
              The file things are logged to when lftp moves into the background in nohup mode.

       ~/.lftp/transfer_log
              The  file transfers are logged to when xfer:log setting is set to 'yes'.  The location can be changed by
              xfer:log-file setting.

       ~/.lftp/bookmarks
              The file is used to store lftp's bookmarks.  See the bookmark command.

       ~/.lftp/cwd_history
              The file is used to store last working directories for each site visited.

       ~/.lftp/bg/
              The directory is used to store named sockets for backgrounded lftp processes.

       ~/.lftp/DHT/"
              The directory is used to store DHT id and nodes cache for IPv4 and IPv6.  File name suffix is  the  host
              name.

       ~/.netrc
              The file is consulted to get default login and password to ftp server.  Passwords are also searched here
              if an URL with user name but with no password is used.


SEE ALSO
       ftpd(8), ftp(1)
       RFC854 (telnet), RFC959 (ftp), RFC1123, RFC1945 (http/1.0), RFC2052 (SRV  RR),  RFC2228  (ftp  security  exten-
       sions), RFC2389 (ftp FEAT), RFC2428 (ftp/ipv6), RFC2518 (WebDAV), RFC2616 (http/1.1), RFC2617 (http/1.1 authen-
       tication), RFC2640 (ftp i18n), RFC4217 (ftp over ssl), BEP0003 (BitTorrent Protocol), BEP0005  (DHT  Protocol),
       BEP0006  (Fast  Extension),  BEP0007  (IPv6  Tracker  Extension), BEP0009 (Extension for Peers to Send Metadata
       Files), BEP0010 (Extension Protocol), BEP0012 (Multitracker Metadata Extension), BEP0023 (Tracker Returns  Com-
       pact Peer Lists), BEP0032 (DHT Extensions for IPv6).
       http://www.ietf.org/internet-drafts/draft-ietf-ftpext-mlst-16.txt (ftp extensions over RFC959),
       http://www.ietf.org/internet-drafts/draft-ietf-secsh-filexfer-10.txt (sftp).
       http://wiki.theory.org/BitTorrentSpecification
       http://www.bittornado.com/docs/multitracker-spec.txt
       http://www.rasterbar.com/products/libtorrent/dht_sec.html (DHT security extension)


AUTHOR
       Alexander V. Lukyanov
       lavATyars.net


ACKNOWLEDGMENTS
       This  manual  page  was originally written by Christoph Lameter <clameterATdebian.org>, for the Debian GNU/Linux
       system. The page was improved and updated later  by  Nicolas  Lichtmaier  <nickATFeedback.ar>,  James  Troup
       <J.J.TroupATcomp.uk> and Alexander V. Lukyanov <lavATyars.net>.



                                  24 Aug 2012                          lftp(1)