
\Scrontab\S: Description

Syntax Summary:  crontab [file_name]
                 crontab -l
                 crontab -r

         where:  file_name  is the name of a file.

Description:
     \Scrontab\S stands for "chronological table." Use \Scrontab\S to set up
     commands to be executed automatically on a regular basis. \Scrontab\S
     takes a file that contains commands and times to execute those commands,
     and puts it in a directory called /usr/lib/cron.  \Scrontab\S can also
     take this information from standard input.  The command and time
     information becomes your chronological table, and the commands will be
     executed at the specified times.  Each time you want to change your
     chronological table, you must include all the commands you want in it
     because \Scrontab\S does not save any of the old commands.  You can also
     use \Scrontab\S to list and remove the commands in your chronological
     table.  You can not use \Scrontab\S unless your login name is in the file
     /usr/lib/cron/cron.allow. If your system does not have a "cron.allow"
     file, your login name must not appear in the /usr/lib/cron/cron.deny.
     See the manual page for \Scrontab\S for details on specifying time. See
     also:  at(1) and cal(1) for commands with functions similar to \Scrontab\S.

