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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | SYNOPSIS | DESCRIPTION | DATE STRING | AUTHOR | REPORTING BUGS | COPYRIGHT | SEE ALSO | COLOPHON |
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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 [[CC]YY]MMDDhhmm[.ss]
use specified time instead of current time, with a
date-time format that differs from -d's
--time=WORD
specify which time to change: access time (-a): 'access',
'atime', 'use'; modification time (-m): 'modify', 'mtime'
--help display this help and exit
--version
output version information and exit
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.
GNU coreutils online help:
<https://www.gnu.org/software/coreutils/>
Report any translation bugs to
<https://translationproject.org/team/>
Copyright © 2024 Free Software Foundation, Inc. License GPLv3+:
GNU GPL version 3 or later <https://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.
Full documentation <https://www.gnu.org/software/coreutils/touch>
or available locally via: info '(coreutils) touch invocation'
This page is part of the coreutils (basic file, shell and text
manipulation utilities) project. Information about the project
can be found at ⟨http://www.gnu.org/software/coreutils/⟩. If you
have a bug report for this manual page, see
⟨http://www.gnu.org/software/coreutils/⟩. This page was obtained
from the tarball coreutils-9.5.tar.xz fetched from
⟨http://ftp.gnu.org/gnu/coreutils/⟩ on 2024-06-14. If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to [email protected]
GNU coreutils 9.5 March 2024 TOUCH(1)
Pages that refer to this page: last(1@@util-linux), utime(2), utimensat(2), systemd-update-done.service(8)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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