Touch

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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: equivalent to -a WORD is modify or mtime: equivalent to -m

--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 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.

REPORTING BUGS

GNU coreutils online help: <https://www.gnu.org/software/coreutils/>

Report any translation bugs to <https://translationproject.org/team/>

COPYRIGHT

Copyright © 2020 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.

SEE ALSO

       Full documentation <https://www.gnu.org/software/coreutils/touch>

       or available locally via: info '(coreutils) touch invocation'