set::crontab(3) [suse man page]

Crontab(3)						User Contributed Perl Documentation						Crontab(3)

NAME

       Set::Crontab - Expand crontab(5)-style integer lists

SYNOPSIS

       $s = Set::Crontab->new("1-9/3,>15,>30,!23", [0..30]);

       if ($s->contains(3)) { ... }

DESCRIPTION

       Set::Crontab parses crontab-style lists of integers and defines some utility functions to make it easier to deal with them.

   Syntax
       Numbers, ranges, *, and step values all work exactly as described in crontab(5). A few extensions to the standard syntax are described
       below.

       < and >
	   <N selects the elements smaller than N from the entire range, and adds them to the set. >N does likewise for elements larger than N.

       !   !N excludes N from the set. It applies to the other specified range; otherwise it applies to the specified ranges (i.e. "!3" with a
	   range of "1-10" corresponds to "1-2,4-10", but ">3,!7" in the same range means "4-6,8-10").

   Functions
       new($spec, [@range])
	   Creates a new Set::Crontab object and returns a reference to it.

       contains($num)
	   Returns true if $num exists in the set.

       list()
	   Returns the expanded list corresponding to the set.

       The functions described above croak if they are called with incorrect arguments.

SEE ALSO

       crontab(5)

AUTHOR

       Abhijit Menon-Sen <ams@toroid.org>

       Copyright 2001 Abhijit Menon-Sen <ams@toroid.org>

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.12.1							    2008-07-30								Crontab(3)

CRONTAB(1)						      General Commands 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 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.

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)