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jbk <jbk at mail2.gis.net> writes: > I want my full backup script to run every fourth Monday and > I thought the following sintax would do that, but this > morning it ran again, this is the second Monday in the > cycle. > > '15 4 * * 1/4 /etc/backup/backup monday > >>/var/log/backup/tape.log' > > Does this syntax only work on the HOUR & DAYS_OF_MONTH > fields? The man page doesn't say. Yes, I ran into this same problem 15 years ago when I wanted to use cron to send out monthly reminders for BCS meetings. Unfortunately, this is indeed the "correct" behavior for cron; the day-of-week field is inherently broken by design. I've never really understood the rationale for it, as this seriously limits cron's flexibility. -- John Abreau / Executive Director, Boston Linux & Unix ICQ 28611923 / AIM abreauj / JABBER jabr at jabber.org / YAHOO abreauj Email jabr at blu.org / WWW http://www.abreau.net / PGP-Key-ID 0xD5C7B5D9 PGP-Key-Fingerprint 72 FB 39 4F 3C 3B D6 5B E0 C8 5A 6E F1 2C BE 99 -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 344 bytes Desc: not available URL: <http://lists.blu.org/pipermail/discuss/attachments/20011231/d503b403/attachment.sig>
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