Thanks, Ray: Odd, here is a segment of (*my*) 'man crontab' showing the example lines. Every example has 'date' as the 6th field. :-| (*my* = slackware-8.0, kernel-2.2.19, firewall, ip-masq) Maybe the examples show how to run the 'date' program?
# MIN HOUR DAY MONTH DAYOFWEEK COMMAND # at 6:10 a.m. every day 10 6 * * * date # every two hours at the top of the hour 0 */2 * * * date # every two hours from 11p.m. to 7a.m., and at 8a.m. 0 23-7/2,8 * * * date # at 11:00 a.m. on the 4th and on every mon, tue, wed 0 11 4 * mon-wed date # 4:00 a.m. on january 1st 0 4 1 jan * date # once an hour, all output appended to log file 0 4 1 jan * date >>/var/log/messages 2>&1 Ray Olszewski wrote: > > At 03:50 PM 6/7/2003 -0400, Chuck Gelm wrote: > >Howdy, y'all: > > > > I want to run a script monthly. > >(update my dynamic DNS account) > >I (as 'root') ran 'crontab -e' and added this line: > > > >5 6 7 * date /usr/local/src/ez/dyndns.conf >> /share/dyndnsup.txt 2>> > >/share/dyndnsup.txt > > > >This seems to be the syntax indicated by 'man crontab'. > >If I understand the syntax of crontab, the above line will > >every 7th of the month, at 06:05, execute my dyndns.conf file > >and send standard and error messages to file /share/dyndnsup.txt. > > > > Is this correct syntax? > > Probably. I'm not familiar with the use of "date" as the fifth field (for > day of the week), and I can't find it listed as an option in my man page, > so I am not sure about that piece. I would write this entry ... > > 5 6 7 * * /usr/local/src/ez/dyndns.conf >> /share/dyndnsup.txt 2>> > /share/dyndnsup.txt. > > ... with the last * indicating any day of the week. > > > Is there a syntax checker for crontab like testparm for samba? > > crontab itself will inform you if any of the 5 time fields has an invalid > entry, whenever you exit your editor (and it displays the "installing new > crontab" message). crontab has no way fo knowing if the entry for what to > run is valid or not. > > - > To unsubscribe from this list: send the line "unsubscribe linux-newbie" in > the body of a message to [EMAIL PROTECTED] > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.linux-learn.org/faqs - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs
