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CRONTAB(1)									       CRONTAB(1)

       crontab - maintain crontab files for individual users (V3)

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

       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 confuse 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 variables.  After you exit from the  editor,  the	modified  crontab
       will be installed automatically.

       crontab(5), cron(8)


       The  crontab command conforms to IEEE Std1003.2-1992 (``POSIX'').  This new command syntax
       differs from previous versions of Vixie Cron, as well as from the classic SVR3 syntax.

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

       Paul Vixie <paul@vix.com>

4th Berkeley Distribution		 29 December 1993			       CRONTAB(1)
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