2.11BSD#431 - /usr/man/cat1/crontab.0

CRONTAB(1)          UNIX Programmer's Manual           CRONTAB(1)


NAME
     crontab - maintain crontab files for individual users (V3)

SYNOPSIS
     crontab [ -u user ] file
     crontab [ -u user ] { -l | -r | -e }

DESCRIPTION
     Crontab is the program used to install, deinstall or list
     the tables used to drive the cron(8) daemon in Vixie Cron.
     Each user can have their own crontab, and though these are
     files in /var, they are not intended to be edited directly.

     If the allow file exists, then you must be listed therein in
     order to be allowed to use this command.  If the allow file
     does not exist but the deny file does exist, then you must
     not be listed in the deny file in order to use this command.
     If neither of these files exists, then depending on site-
     dependent configuration parameters, only the super user will
     be allowed to use this command, or all users will be able to
     use this command.

     If the -u option is given, it specifies the name of the user
     whose crontab is to be tweaked.  If this option is not
     given, crontab examines "your" crontab, i.e., the crontab of
     the person executing the command.  Note that su(8) can con-
     fuse crontab and that if you are running inside of su(8) you
     should always use the -u option for safety's sake.

     The first form of this command is used to install a new
     crontab from some named file or standard input if the
     pseudo-filename ``-'' is given.

     The -l option causes the current crontab to be displayed on
     standard output.

     The -r option causes the current crontab to be removed.

     The -e option is used to edit the current crontab using the
     editor specified by the VISUAL or EDITOR environment vari-
     ables.  After you exit from the editor, the modified crontab
     will be installed automatically.

SEE ALSO
     crontab(5), cron(8)

FILES
     /var/cron/allow
     /var/cron/deny

STANDARDS
     The crontab command conforms to IEEE Std1003.2-1992


Printed 11/26/99        29 December 1993                        1


CRONTAB(1)          UNIX Programmer's Manual           CRONTAB(1)


     (``POSIX'').  This new command syntax differs from previous
     versions of Vixie Cron, as well as from the classic SVR3
     syntax.

DIAGNOSTICS
     A fairly informative usage message appears if you run it
     with a bad command line.

AUTHOR
     Paul Vixie <paul@vix.com>


Printed 11/26/99        29 December 1993                        2