Date: Mon, 8 Jun 2009 10:36:09 -0400 From: Paul Chvostek <paul+fbsd@it.ca> To: Jos Chrispijn <jos@webrz.net> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Cronjob Message-ID: <20090608143609.GA5108@it.ca> In-Reply-To: <4A2D0A5C.8010809@webrz.net> References: <4A2D0A5C.8010809@webrz.net>
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Hi Jos, On Mon, Jun 08, 2009 at 02:55:56PM +0200, Jos Chrispijn wrote: > > I would like to execute a script on every last day of the month in my > crontab. > Can someone tell me how I should solve that as it doesn't know which > month day is the last day of the month? > Solving this in the script to be executed is no option. The only solutions I see are the three-cronjob approach: 0 1 31 1,3,5,7,8,10,12 * /path/to/script 0 1 28 2 * /path/to/script 0 1 30 4,6,9,11 * /path/to/script Alternately, you could do this with a single cronjob by putting a little scripting intelligence into the crontab itself: 0 1 28-31 * * test `date -v+1d '+%d'` -eq 1 && /path/to/script That may be your easiest option. The script only gets run on the correct dates, but the cron job still gets run more frequently. p -- Paul Chvostek <paul@it.ca> it.canada http://www.it.ca/
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