1.\"/* Copyright 1988,1990,1993 by Paul Vixie 2.\" * All rights reserved 3.\" * 4.\" * Distribute freely, except: don't remove my name from the source or 5.\" * documentation (don't take credit for my work), mark your changes (don't 6.\" * get me blamed for your possible bugs), don't alter or remove this 7.\" * notice. May be sold if buildable source is provided to buyer. No 8.\" * warrantee of any kind, express or implied, is included with this 9.\" * software; use at your own risk, responsibility for damages (if any) to 10.\" * anyone resulting from the use of this software rests entirely with the 11.\" * user. 12.\" * 13.\" * Send bug reports, bug fixes, enhancements, requests, flames, etc., and 14.\" * I'll try to keep a version up to date. I can be reached as follows: 15.\" * Paul Vixie <paul@vix.com> uunet!decwrl!vixie!paul 16.\" */ 17.\" 18.\" $FreeBSD$ 19.\" 20.Dd December 29, 1993 21.Dt CRONTAB 1 22.Os 23.Sh NAME 24.Nm crontab 25.Nd maintain crontab files for individual users (V3) 26.Sh SYNOPSIS 27.Nm 28.Op Fl u Ar user 29.Ar file 30.Nm 31.Op Fl u Ar user 32{ 33.Fl l | 34.Fl r | 35.Fl e 36} 37.Sh DESCRIPTION 38.Nm Crontab 39is the program used to install, deinstall or list the tables 40used to drive the 41.Xr cron 8 42daemon in Vixie Cron. Each user can have their own crontab, and though 43these are files in 44.Pa /var , 45they are not intended to be edited directly. 46.Pp 47If the 48.Pa allow 49file exists, then you must be listed therein in order to be allowed to use 50this command. If the 51.Pa allow 52file does not exist but the 53.Pa deny 54file does exist, then you must 55.Em not 56be listed in the 57.Pa deny 58file in order to use this command. If neither of these files exists, then 59depending on site-dependent configuration parameters, only the super user 60will be allowed to use this command, or all users will be able to use this 61command. 62.Pp 63The first form of this command is used to install a new crontab from some 64named file or standard input if the pseudo-filename ``-'' is given. 65.Pp 66The following options are available: 67.Bl -tag -width indent 68.It Fl u 69Specify the name of the user whose crontab is to be 70tweaked. If this option is not given, 71.Nm 72examines "your" crontab, i.e., the crontab of the person executing the 73command. Note that 74.Xr su 1 75can confuse 76.Nm 77and that if you are running inside of 78.Xr su 1 79you should always use the 80.Fl u 81option for safety's sake. 82.It Fl l 83Display the current crontab on standard output. 84.It Fl r 85Remove the current crontab. 86.It Fl e 87Edit the current crontab using the editor specified by 88the 89.Ev VISUAL 90or 91.Ev EDITOR 92environment variables. 93The specified editor 94.Em must 95edit the file in place; 96any editor that unlinks the file and recreates it cannot be used. 97After you exit 98from the editor, the modified crontab will be installed automatically. 99.El 100.Sh SEE ALSO 101.Xr crontab 5 , 102.Xr cron 8 103.Sh FILES 104.Bl -tag -width /var/cron/allow -compact 105.It Pa /var/cron/allow 106.It Pa /var/cron/deny 107.El 108.Sh STANDARDS 109The 110.Nm 111command conforms to 112.St -p1003.2 . 113This new command syntax 114differs from previous versions of Vixie Cron, as well as from the classic 115SVR3 syntax. 116.Sh DIAGNOSTICS 117A fairly informative usage message appears if you run it with a bad command 118line. 119.Sh AUTHORS 120.An Paul Vixie Aq paul@vix.com 121