TOUCH(C) UNIX System V
Name
touch - updates access and modification times of a file
Syntax
touch [ -amc ] [ mmddhhmm[yy] ] files
Description
touch causes the access and modification times of each
argument to be updated. If no time is specified (see
date(C)) the current time is used. If a new file is created
using touch, the modification and access times can be set to
any time. However, the creation time is automatically set
to the current time at the time of creation, and cannot be
changed. The first mm refers to the month, dd refers to the
day, hh refers to the hour, the second mm refers to the
minute, and yy refers to the year. The -a and -m options
cause touch to update only the access or modification times
respectively (default is -am). The -c option silently
prevents touch from creating the file if it did not
previously exist.
The return code from touch is the number of files for which
the times could not be successfully modified (including
files that did not exist and were not created).
See Also
date(C), utime(S)
Standards Conformance
touch is conformant with:
AT&T SVID Issue 2, Select Code 307-127;
and The X/Open Portability Guide II of January 1987.
(printed 8/24/89) TOUCH(C)