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TOUCH(1)                         User Commands                        TOUCH(1)

       touch - change file timestamps

       touch [OPTION]... FILE...

       Update the access and modification times of each FILE to the current time.

       A FILE argument that does not exist is created empty, unless -c or -h is supplied.

       A  FILE  argument  string of - is handled specially and causes touch to change the times of the file associated
       with standard output.

       Mandatory arguments to long options are mandatory for short options too.

       -a     change only the access time

       -c, --no-create
              do not create any files

       -d, --date=STRING
              parse STRING and use it instead of current time

       -f     (ignored)

       -h, --no-dereference
              affect each symbolic link instead of any referenced file (useful only on systems  that  can  change  the
              timestamps of a symlink)

       -m     change only the modification time

       -r, --reference=FILE
              use this file's times instead of current time

       -t STAMP
              use [[CC]YY]MMDDhhmm[.ss] instead of current time

              change  the  specified  time:  WORD  is access, atime, or use: equivalent to -a WORD is modify or mtime:
              equivalent to -m

       --help display this help and exit

              output version information and exit

       Note that the -d and -t options accept different time-date formats.

       The --date=STRING is a mostly free format human readable date string such as "Sun, 29 Feb 2004 16:21:42  -0800"
       or  "2004-02-29  16:21:42"  or even "next Thursday".  A date string may contain items indicating calendar date,
       time of day, time zone, day of week, relative time, relative date, and numbers.  An empty string indicates  the
       beginning  of  the  day.   The  date  string format is more complex than is easily documented here but is fully
       described in the info documentation.

       Written by Paul Rubin, Arnold Robbins, Jim Kingdon, David MacKenzie, and Randy Smith.

       Report touch bugs to
       GNU coreutils home page: <>;
       General help using GNU software: <>;
       Report touch translation bugs to <>;

       Copyright  (C)  2010  Free  Software  Foundation,  Inc.   License  GPLv3+:   GNU   GPL   version   3   or   later
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permit-
       ted by law.

       The full documentation for touch is maintained as a Texinfo manual.  If the info and touch programs  are  prop-
       erly installed at your site, the command

              info coreutils 'touch invocation'

       should give you access to the complete manual.

GNU coreutils 8.4                 March 2017                          TOUCH(1)