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CRONTAB(1)							    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 exam-
       ines "your" crontab, i.e., the crontab of the person executing the com-
       mand.   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  automati-
       cally.

SEE ALSO
       crontab(5), cron(8)

FILES
       /etc/cron.allow
       /etc/cron.deny

STANDARDS
       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.

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

AUTHOR
       Paul Vixie <paul@vix.com>

4th Berkeley Distribution      29 December 1993			    CRONTAB(1)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | FILES | STANDARDS | DIAGNOSTICS | AUTHOR

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