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1. Name

touch - change file timestamps

2. Synopsis

touch [OPTION]... FILE...

3. Description

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

A FILE argument that does not exist is created empty.

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)
-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
--help
display this help and exit
--version
output version information and exit

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

4. Author

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

5. Reporting Bugs

Report bugs to <This email address is being protected from spambots. You need JavaScript enabled to view it.>. Copyright © 2008 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.

7. See Also

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

should give you access to the complete manual.

 


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