1993-08-02 21:48:44 +04:00
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.\" -*- nroff -*-
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.\"
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.\" Copyright 1988,1990 by Paul Vixie
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.\" All rights reserved
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.\"
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.\" Distribute freely, except: don't remove my name from the source or
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.\" documentation (don't take credit for my work), mark your changes (don't
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.\" get me blamed for your possible bugs), don't alter or remove this
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.\" notice. May be sold if buildable source is provided to buyer. No
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.\" warrantee of any kind, express or implied, is included with this
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.\" software; use at your own risk, responsibility for damages (if any) to
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.\" anyone resulting from the use of this software rests entirely with the
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.\" user.
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.\"
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.\" Send bug reports, bug fixes, enhancements, requests, flames, etc., and
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.\" I'll try to keep a version up to date. I can be reached as follows:
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.\" Paul Vixie, 329 Noe Street, San Francisco, CA, 94114, (415) 864-7013,
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.\" paul@vixie.sf.ca.us || {hoptoad,pacbell,decwrl,crash}!vixie!paul
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.\"
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.\" $Id: crontab.1,v 1.3 1993/08/02 17:53:22 mycroft Exp $
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1993-03-21 12:45:37 +03:00
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.\"
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.TH CRONTAB 1 "9 December 1988"
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.UC 4
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.SH NAME
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crontab \- maintain crontab files for individual users
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.SH SYNOPSIS
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1993-05-28 12:33:52 +04:00
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crontab [ -u user ] { -l | -d | -e | -r file }
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1993-03-21 12:45:37 +03:00
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.SH DESCRIPTION
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.I Crontab
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is the program used to install, deinstall or list the tables
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used to drive the
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.IR crond (8)
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daemon in Vixie Cron. Each user has their own crontab, and though these are
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files in /var, they are not readable or writable by anyone or anything
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except the super-user or the
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.IR crond (8)
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or
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.I crontab
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programs.
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.PP
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If the
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.I allow
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file exists, then you must be listed therein in order to be allowed to use
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this command. If the
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.I allow
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file does not exist but the
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.I deny
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file does exist, then you must \fBnot\fR be listed in the
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.I deny
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file in order to use this command. If neither of these files exists, then
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depending on site-dependent configuration parameters, only the super user
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will be allowed to use this command, or all users will be able to use this
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command.
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.PP
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If the
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.I -u
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option is given, it specifies the name of the user whose crontab is to be
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tweaked. If this option is not given,
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.I crontab
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examines "your" crontab, i.e., the crontab of the person executing the
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command. Note that
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.IR su (8)
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can confuse
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.I crontab
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and that if you are running inside of
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.IR su (8)
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you should always use the
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.I -u
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option for safety's sake.
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.PP
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The
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.I -l
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option causes the current crontab to be displayed on standard output.
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.PP
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The
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.I -d
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option causes the current crontab to be deleted.
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.PP
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The
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1993-05-28 12:33:52 +04:00
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.I -e
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option allows you to edit the current crontab. It makes a copy of the
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crontab, starts up your editor via the VISUAL or EDITOR environment
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variables, and then installs your new crontab after your editor exits.
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.PP
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The
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1993-03-21 12:45:37 +03:00
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.I -r
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option is used to replace the current
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crontab (if any) with the contents of the named file.
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.SH "SEE ALSO"
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crontab(5), crond(8)
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.SH FILES
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.nf
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/var/cron/allow
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/var/cron/deny
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.fi
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.SH DIAGNOSTICS
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A fairly informative usage message appears if you run it with a bad command
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line.
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.SH AUTHOR
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.nf
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Paul Vixie, paul@vixie.sf.ca.us
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