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Updated: Wednesday, February 10, 2021
 
 

touch (1g)

Name

touch - change file timestamps

Synopsis

touch [OPTION]... FILE...

Description

TOUCH(1)                         User Commands                        TOUCH(1)



NAME
       touch - change file timestamps

SYNOPSIS
       touch [OPTION]... FILE...

DESCRIPTION
       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

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

       --help display this help and exit

       --version
              output version information and exit

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

DATE STRING
       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 cal-
       endar date, time of day, time zone, day of week, relative  time,  rela-
       tive 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.

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

REPORTING BUGS
       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report touch translation bugs to <http://translationproject.org/team/>

COPYRIGHT
       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+:  GNU
       GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This  is  free  software:  you  are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+--------------------+
       |ATTRIBUTE TYPE |  ATTRIBUTE VALUE   |
       +---------------+--------------------+
       |Availability   | file/gnu-coreutils |
       +---------------+--------------------+
       |Stability      | Uncommitted        |
       +---------------+--------------------+
SEE ALSO
       Full documentation at: <http://www.gnu.org/software/coreutils/touch>
       or available locally via: info '(coreutils) touch invocation'



NOTES
       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source  was  downloaded  from   https://ftp.gnu.org/gnu/coreutils/core-
       utils-8.27.tar.xz

       Further information about this software can be found on the open source
       community website at https://www.gnu.org/software/coreutils.



GNU coreutils 8.27                March 2017                          TOUCH(1)