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===================================================================
RCS file: /ftp/cvs/cvsroot/src/usr.sbin/cron/Attic/crontab.5,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -p -r1.4 -r1.5
--- src/usr.sbin/cron/Attic/crontab.5	1997/07/13 10:52:19	1.4
+++ src/usr.sbin/cron/Attic/crontab.5	1997/07/13 11:01:16	1.5
@@ -1,4 +1,4 @@
-.\"	$NetBSD: crontab.5,v 1.4 1997/07/13 10:52:19 mouse Exp $
+.\"	$NetBSD: crontab.5,v 1.5 1997/07/13 11:01:16 mouse Exp $
 .\"
 .\"/* Copyright 1988,1990,1993,1994 by Paul Vixie
 .\" * All rights reserved
@@ -148,6 +148,30 @@ field matches the current time.  For exa
 ``30 4 1,15 * 5''
 would cause a command to be run at 4:30 am on the 1st and 15th of each
 month, plus every Friday.
+.PP
+Instead of the first five fields, one of eight special strings may appear:
+.IP
+.ta 1.5i
+string	meaning
+.br
+------	-------
+.br
+@reboot	Run once, at startup.
+.br
+@yearly	Run once a year, "0 0 1 1 *".
+.br
+@annually	(same as @yearly)
+.br
+@monthly	Run once a month, "0 0 1 * *".
+.br
+@weekly	Run once a week, "0 0 * * 0".
+.br
+@daily	Run once a day, "0 0 * * *".
+.br
+@midnight	(same as @daily)
+.br
+@hourly	Run once an hour, "0 * * * *".
+.br
 .SH EXAMPLE CRON FILE
 .nf
 
@@ -185,6 +209,9 @@ Command output is mailed to the crontab 
 mailed to a person other than the crontab owner (SysV can't do this), or the
 feature can be turned off and no mail will be sent at all (SysV can't do this
 either).
+.PP
+All of the `@' commands that can appear in place of the first five fields
+are extensions.
 .SH AUTHOR
 .nf
 Paul Vixie <paul@vix.com>