Submitting an at job file includes:
Invoking the at utility, specifying a command execution time.
Entering a command or script to execute later.
If output from this command or script is important, be sure to direct it to a file for later examination.
For example, the following at job removes core files from the user account belonging to Smith near midnight on the last day of January.
$ at 11:45pm January 31 at> rm /home/smith/*core* at> Press Control-d job 852755100.a at Wed Jan 8 13:25:00 1997 |
You can set up a file to control access to the at command, permitting only specified users to create, remove, or display queue information about their at jobs. The file that controls access to at, /etc/cron.d/at.deny, consists of a list of user names, one per line. The users listed in this file cannot access at commands.
The at.deny file, created during SunOS software installation, contains the following user names:
daemon bin smtp nuucp listen nobody noaccess |
With superuser privileges, you can edit this file to add other user names whose at access you want to restrict.