Re: complex crontab query
* Matthew Seaman [EMAIL PROTECTED] [20030930 21:08]: wrote: On Tue, Sep 30, 2003 at 07:49:57PM +0300, Odhiambo Washington wrote: This question was asked and was answered by Crist J. Clark some years gone. Google could not help me so I beg to ask here: crontab(5) should be all you need. I would like to run a script via crontab every 1. 3rd day and 28th day of each month (seems easy) Crontab line like: 23 11 3,28 * * your_script will run at 11:23am on the 3rd and 28th of each month. 2. Every first Thursday of the month This one is slightly trickier -- the best you can do with crontab is either every Thursday, and add logic to your script to detect if it's on or before the 7th of the month (or conversely for the first 7 days of each month, and have the script check if it's Thursday): something like -- 23 11 * * Thu [ $(date +%d) -lt 8 ] your_script ( or 23 11 1-7 * * [ $(date +%a) = Thu ] your_script but the former is probably preferable) How does that differ with the following? 23 11 * * 4 if [ `date +\%d` -le 7 ]; then /path/to/my/command; fi Best regards, Odhiambo Washington Wananchi Online Ltd. --+- Odhiambo W. wash(at)wananchi(dot)com . WANANCHI ONLINE LTD (Nairobi, KE) http://www.wananchi.com/email/ . 1ere Etage, Loita Hse, Loita St., Mobile: (+254) 722 743 223 . # 10286, 00100 NAIROBI --+- What the hell, go ahead and put all your eggs in one basket. Do not be afraid of those who kill the body but cannot kill the soul. Rather be afraid of the One who can destroy both soul and body in hell. Matthew 10:28 pgp0.pgp Description: PGP signature
Re: complex crontab query
On Tue, Oct 07, 2003 at 05:53:47PM +0300, Odhiambo Washington wrote: * Matthew Seaman [EMAIL PROTECTED] [20030930 21:08]: wrote: 23 11 * * Thu [ $(date +%d) -lt 8 ] your_script How does that differ with the following? 23 11 * * 4 if [ `date +\%d` -le 7 ]; then /path/to/my/command; fi TIMTOWTDI. Both lines should have the same effect overall, although I neglected to escape the % sign in what I wrote, which is not a good move in a crontab file. Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way PGP: http://www.infracaninophile.co.uk/pgpkey Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK pgp0.pgp Description: PGP signature
RE: complex crontab query
This question was asked and was answered by Crist J. Clark some years gone. Google could not help me so I beg to ask here: I would like to run a script via crontab every 1. 3rd day and 28th day of each month (seems easy) 2. Every first Thursday of the month One solution would be to program the logic into your script, then run the script every day from crontab. Example bash pseudo-code: If day-of-month = 3 or 28 ; then do some stuff Elif day-of-month = 7 and day-of-week = Thursday ; then do the same stuff fi ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: complex crontab query
On Tue, Sep 30, 2003 at 07:49:57PM +0300, Odhiambo Washington wrote: This question was asked and was answered by Crist J. Clark some years gone. Google could not help me so I beg to ask here: crontab(5) should be all you need. I would like to run a script via crontab every 1. 3rd day and 28th day of each month (seems easy) Crontab line like: 23 11 3,28 * * your_script will run at 11:23am on the 3rd and 28th of each month. 2. Every first Thursday of the month This one is slightly trickier -- the best you can do with crontab is either every Thursday, and add logic to your script to detect if it's on or before the 7th of the month (or conversely for the first 7 days of each month, and have the script check if it's Thursday): something like -- 23 11 * * Thu [ $(date +%d) -lt 8 ] your_script ( or 23 11 1-7 * * [ $(date +%a) = Thu ] your_script but the former is probably preferable) Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way PGP: http://www.infracaninophile.co.uk/pgpkey Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK pgp0.pgp Description: PGP signature
Re: complex crontab query
Here are untested examples that I think should work. They run the job at 3:00 am (the first two fields). On Tue, Sep 30, 2003 at 07:49:57PM +0300, Odhiambo Washington wrote: 1. 3rd day and 28th day of each month (seems easy) 0 3 3,28 * * mycommand 2. Every first Thursday of the month 0 3 1-7 * * [ `date +%a` = Thu ] mycommand -- Matthew Hunt [EMAIL PROTECTED] * Science rules. http://www.pobox.com/~mph/ * ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: complex crontab query
Matthew Hunt [EMAIL PROTECTED] writes: 2. Every first Thursday of the month 0 3 1-7 * * [ `date +%a` = Thu ] mycommand My understanding is that putting more than one condition in it performs a logical conjunction. So wouldn't it work to do like this? # minute hour dom month dow command 031-7 * 4 mycommand But I'm not an expert. Kai ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: complex crontab query
On Tue, Sep 30, 2003 at 10:56:20PM +0200, Kai Grossjohann wrote: My understanding is that putting more than one condition in it performs a logical conjunction. So wouldn't it work to do like this? # minute hour dom month dow command 031-7 * 4 mycommand I thought that might be the case, but the man page says: # Commands are executed by cron(8) when the minute, hour, and month of # year fields match the current time, and when at least one of the two # day fields (day of month, or day of week) matches the current time # (see ``Note'' below). ... # Note: The day of a command's execution can be specified by two fields # -- day of month, and day of week. If both fields are restricted (ie, # aren't *), the command will be run when either field matches the # current time. For example, ``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. -- Matthew Hunt [EMAIL PROTECTED] * Salvage, like other forms of virtue, is http://www.pobox.com/~mph/ * its own reward. -George Reamerstaff ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: complex crontab query
Matthew Hunt [EMAIL PROTECTED] writes: On Tue, Sep 30, 2003 at 10:56:20PM +0200, Kai Grossjohann wrote: My understanding is that putting more than one condition in it performs a logical conjunction. So wouldn't it work to do like this? # minute hour dom month dow command 031-7 * 4 mycommand I thought that might be the case, but the man page says: # Commands are executed by cron(8) when the minute, hour, and month of # year fields match the current time, and when at least one of the two # day fields (day of month, or day of week) matches the current time # (see ``Note'' below). Ick. Silly me. Can't even read the manpage. *blush* Kai ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
