To change the editor to your own choice, just set that variable. Explanation From the cron(8) page: When executing commands, any output is mailed to the owner of the crontab (or to the user named in the MAILTO environment variable in the crontab, Not sure if that's the problem? The cron job specification format differs between users' crontab files (/var/spool/cron/username or /var/spool/cron/crontabs/username) and the system crontabs (/etc/crontab and the the files in /etc/cron.d).
If root does not own the script then cron will simply skip over it entirely. Term for a perfect specimen or sample Armistice Day Challenge Physics of Ice books Is there any way for a planet orbiting a red dwarf in the habitable zone to not Specific dates are usually a problem as we rarely use them * * 3 1 * is not March 3rd. Yikes! http://askubuntu.com/questions/23009/reasons-why-crontab-does-not-work
to setup if you've never scheduled a job before. The commands in the crontab file (and their run times) are checked by the cron daemon, which executes them in the system background. In the case of writing to a file or folder, it MUST be writable. Cron usually send mail to the user when there is something wrong.
That gives clearer insights of what is going. For example I would use (change fcron to the name of your daemon): killall fcron fcron --foreground --debug share|improve this answer answered Mar 17 '11 at 15:08 phunehehe 10.5k1364127 Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the Crontab Not Running Python Script I had crontab -e setup like this * * * * * /bin/my-script.sh And the file myscript was not executable so I ran chmod +x my-script.sh Immediately I started seeing output
Additional troubleshooting The DV servers contain a cron log that will record all cron activity and any errors encountered. Crontab Not Working Centos How do I deal with my current employer not respecting my decision to leave? The second type is to be found in the directory /etc/cron.d. http://serverfault.com/questions/449651/why-is-my-crontab-not-working-and-how-can-i-troubleshoot-it share|improve this answer answered Jun 24 '13 at 19:35 community wiki Michael Mather add a comment| up vote 1 down vote This happened to me recently: I had two lines that
Run the following command to see your current path. Cron: Unrecognized Service How can I ensure my Playstation 2 will last a long time? Raise the cron debug level Debian in /etc/default/cron set EXTRA_OPTS="-L 2" service cron restart tail -f /var/log/syslog to see the scripts executed Ubuntu in /etc/rsyslog.d/50-default.conf add or comment out line cron.crit Save your changes. (Exiting without saving will leave your crontab unchanged.) To display the on-line help describing the format of the crontab file enter: man 5 crontabCommands that normally run with
A "%" character in the command, unless escaped with a backslash (\), will be changed into newline characters, and all data after the first % will be sent to the command http://unix.stackexchange.com/questions/9466/why-did-my-crontab-not-trigger For instance, if you are trying to run a PHP script via the cron job, you must specify that the file being run requires the PHP language to run it. Crontab Not Running Shell Script They do not wrap past the end. Crontab Not Running Bash Script The case of the Maid, the Son and the Butler Why is (a % 256) different than (a & 0xFF)?
Not the answer you're looking for? If you want to regularly run a command requiring administrative permissions, edit the root crontab file: sudo crontab -eDepending on the commands being run, you may need to expand the root INFO: User is a valid privileged account. Vi and vim use the character correctly, and cron was built before the new editors started their odd behavior... Cron No Mta Installed
The crontab will be installed and begin running if there are no errors. Although the directories contain periods in their names, run-parts will not accept a file name containing a period and will fail silently when encountering them (bug #38022). Ubuntu: grep CRON /var/log/syslog Redhat: /var/log/cron Check permissions set executable flag on the command: chmod +x /var/www/app/cron/do-stuff.php if you redirect the output of your command to a file, verify you have Example: Instead of adding a line to /etc/crontab, which Rusty knows is not a good idea, he might well add a file to the directory /etc/cron.d with the name rusty, containing
Enjoy the site! Crontab Permissions So I will not see the job until after I :q also. –DutGRIFF Jun 24 '14 at 14:58 I think best way to debug cron is to check syslog It needs to be correctly written.
However, the command will never run. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed If your cron job is executing a script of some kind, you must be sure to use only absolute paths inside that script. Set Path In Crontab Do you want the cron daemon to run as yourself? (yes/no) no Were the passwords of all cron users saved with "passwd -R", or are you using the cyglsa package ?
Note: In Karmic(9.10), you have to enable X ACL for localhost to connect to for GUI applications to work. ~$ xhost +local: non-network local connections being added to access control list I finally found out what was going on when I checked syslog and saw my command was truncated at the % symbol. I forget why I didn't use that, possibly some non-standard behavior that circumvented said solution. UbuntuCommunityAsk!DeveloperDesignDiscourseHardwareInsightsJujuShopMore ›AppsHelpForumLaunchpadMAASCanonical current community chat Ask Ubuntu Ask Ubuntu Meta your communities Sign up or log in to customize your list.
I'm not sure what the problem is with your other cron command. Select the user you are running the cron job under, then select Preferences. User@Uva ~ $ ps -ef | grep cron | grep -v grep User 2944 11780 ? 03:31:10 /usr/sbin/cron User 2940 7284 pty1 19:58:41 /usr/bin/crontab User@Uva ~ $ share|improve this answer answered The fields are separated by spaces or tabs.
Here is the command sequence that got me going: User@Uva ~ $ cron-config The cron daemon can run as a service or as a job.
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