File: coreutils.info, Node: install invocation, Next: mv invocation, Prev: dd invocation, Up: Basic operations 11.3 `install': Copy files and set attributes ============================================= `install' copies files while setting their file mode bits and, if possible, their owner and group. Synopses: install [OPTION]... [-T] SOURCE DEST install [OPTION]... SOURCE... DIRECTORY install [OPTION]... -t DIRECTORY SOURCE... install [OPTION]... -d DIRECTORY... * If two file names are given, `install' copies the first file to the second. * If the `--target-directory' (`-t') option is given, or failing that if the last file is a directory and the `--no-target-directory' (`-T') option is not given, `install' copies each SOURCE file to the specified directory, using the SOURCEs' names. * If the `--directory' (`-d') option is given, `install' creates each DIRECTORY and any missing parent directories. Parent directories are created with mode `u=rwx,go=rx' (755), regardless of the `-m' option or the current umask. *Note Directory Setuid and Setgid::, for how the set-user-ID and set-group-ID bits of parent directories are inherited. `install' is similar to `cp', but allows you to control the attributes of destination files. It is typically used in Makefiles to copy programs into their destination directories. It refuses to copy files onto themselves. `install' never preserves extended attributes (xattr). The program accepts the following options. Also see *note Common options::. `-b' `--backup[=METHOD]' *Note Backup options::. Make a backup of each file that would otherwise be overwritten or removed. `-C' `--compare' Compare each pair of source and destination files, and if the destination has identical content and any specified owner, group, permissions, and possibly SELinux context, then do not modify the destination at all. `-c' Ignored; for compatibility with old Unix versions of `install'. `-D' Create any missing parent directories of DEST, then copy SOURCE to DEST. This option is ignored if a destination directory is specified via `--target-directory=DIR'. `-d' `--directory' Create any missing parent directories, giving them the default attributes. Then create each given directory, setting their owner, group and mode as given on the command line or to the defaults. `-g GROUP' `--group=GROUP' Set the group ownership of installed files or directories to GROUP. The default is the process's current group. GROUP may be either a group name or a numeric group ID. `-m MODE' `--mode=MODE' Set the file mode bits for the installed file or directory to MODE, which can be either an octal number, or a symbolic mode as in `chmod', with `a=' (no access allowed to anyone) as the point of departure (*note File permissions::). The default mode is `u=rwx,go=rx,a-s'--read, write, and execute for the owner, read and execute for group and other, and with set-user-ID and set-group-ID disabled. This default is not quite the same as `755', since it disables instead of preserving set-user-ID and set-group-ID on directories. *Note Directory Setuid and Setgid::. `-o OWNER' `--owner=OWNER' If `install' has appropriate privileges (is run as root), set the ownership of installed files or directories to OWNER. The default is `root'. OWNER may be either a user name or a numeric user ID. `--preserve-context' Preserve the SELinux security context of files and directories. Failure to preserve the context in all of the files or directories will result in an exit status of 1. If SELinux is disabled then print a warning and ignore the option. `-p' `--preserve-timestamps' Set the time of last access and the time of last modification of each installed file to match those of each corresponding original file. When a file is installed without this option, its last access and last modification times are both set to the time of installation. This option is useful if you want to use the last modification times of installed files to keep track of when they were last built as opposed to when they were last installed. `-s' `--strip' Strip the symbol tables from installed binary executables. `--strip-program=PROGRAM' Program used to strip binaries. `-S SUFFIX' `--suffix=SUFFIX' Append SUFFIX to each backup file made with `-b'. *Note Backup options::. `-t DIRECTORY' `--target-directory=DIRECTORY' Specify the destination DIRECTORY. *Note Target directory::. `-T' `--no-target-directory' Do not treat the last operand specially when it is a directory or a symbolic link to a directory. *Note Target directory::. `-v' `--verbose' Print the name of each file before copying it. `-Z CONTEXT' `--context=CONTEXT' Set the default SELinux security context to be used for any created files and directories. If SELinux is disabled then print a warning and ignore the option. An exit status of zero indicates success, and a nonzero value indicates failure.