z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

Options
Examples
–a Sets only the access time.
–c Does not create any file that does not already exist. Normally, touch
creates such files.
–m Sets only the modification time.
If you do not specify –a or –m, touch behaves as though you specified both.
To tell touch to use a time other than the current, use one of the following options:
–f agefile
Is an obsolete version of the –r option.
–r agefile
Sets the access and modification times (as indicated by the other options)
to those kept for agefile.
–t time
Specifies a particular time using this format:
[[[[cc]yy]mm]dd]hhmm [.ss]
where:
v cc is the first two digits of the year (optional)
v yy is the last two digits of the year (optional)
v mm is the number of the month (01—12) (optional)
v dd is the day of the month (optional)
v hh is the hour in 24-hour format (required)
v mm is the minutes (required)
v ss is the seconds (optional)
An obsolete (but still supported) version of this command lets you omit the
–t, but the format is:
[[mm]dd]hhmm[.ss]
or:
mmddhhmmyy[.ss]
1. To set the modification time of newfile to the present, enter:
touch newfile
2. To set the modification time of oldfile to 13:05 on July 3, 1994, enter:
touch –t 9407031305 oldfile
3. To set the modification time of newfile to that of oldfile, enter:
touch –r oldfile newfile
Environment Variable
touch uses the following environment variable:
TZ Contains the time zone that touch is to use when interpreting times.
See Appendix I for more information.
touch
Chapter 2. Shell command descriptions 701