CRONTAB(1)                     1988                    CRONTAB(1)


NAME
       crontab - maintain crontab files for individual users

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

DESCRIPTION
       Crontab  is the program used to install, deinstall or list
       the tables used to drive  the  crond(8)  daemon  in  Vixie
       Cron.   Each  user has their own crontab, and though these
       are files in /var, they are not readable  or  writable  by
       anyone  or  anything except the super-user or the crond(8)
       or crontab programs.

       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  confuse  crontab  and  that if you are running
       inside of su(8) you should always use the  -u  option  for
       safety's sake.

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

       The -d option causes the current crontab to be deleted.

       The -r option is used to replace the current  crontab  (if
       any) with the contents of the named file.

SEE ALSO
       crontab(5), crond(8)

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

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

AUTHOR
       Paul Vixie, paul@vixie.sf.ca.us





December                        9                               1