This script will help you do so. If your command is in a different location you can solve this in a couple of ways: Provide the full path to your command. 1 2 * * * /path/to/your/command Provide Very small transformer powering a microwave oven What are some ways that fast, long-distance communications can exist without needing to have electronic radios? That way I am taking advantage of any existing syslog infrastructure (centralized syslogs, Splunk, log rotation already supported, it's easy to compare messages in /var/log/messages & /var/log/cronjob, etc), and I'm not http://haiteq.com/crontab-not/crontab-changes-not-working.php
share|improve this answer edited Jan 26 '11 at 18:24 community wiki 2 revs, 2 users 75%jet 4 That's not unique to cron, and easily traceable by simply trying to execute By all means, use whatever cron implementation you wish. Some regexs worked when the script was called from crontab while others did not, e.g. [[:print:]] did not work. When you edit the crontab file with the command crontab -e and save it, crond checks it for basic validity but does not guarantee your crontab file is correctly formed. http://askubuntu.com/questions/23009/reasons-why-crontab-does-not-work
scriptname or sh scriptname or bash scriptname, then this becomes a cron-specific problem. –Eliah Kagan Nov 24 '11 at 23:09 add a comment| up vote 13 down vote If your cronjob 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 My two gotchas: mycronjob file had to be owned by root to run I had to set permissions of the file to 644 - 664 would not run. INFO: The cygwin user name for account User is User.
share|improve this answer answered Nov 1 at 4:44 theINtoy 1,06911225 add a comment| up vote -1 down vote Sometimes the command that cron needs to run is in a directory where Ranges and steps can be combined e.g. */2 signifies starting at the minimum for the relevant field then every 2 e.g. 0 for minutes( 0,2...58), 1 for months (1,3 ... 11) For example, in PHP: chdir(dirname(__FILE__)); –Evan Donovan Sep 10 '15 at 16:14 Just got caught with this one: the script used to be in the root of my home Crontab Not Running Python Script Kill the cron process and start it again with the additional flag. –phunehehe Mar 18 '11 at 1:34 add a comment| up vote 1 down vote Most likely, when cron fails,
There are several ways to find out what's wrong with your system. If you want to a script to stop executing, the most logical method will be to remove it from "cron.d" directory. –MatuDuke May 16 '14 at 13:59 add a comment| up On my computer the log file is at /var/log/cron/current (requires root access). http://unix.stackexchange.com/questions/9466/why-did-my-crontab-not-trigger Did Trump call Belgium a village in Europe?
share|improve this answer answered Oct 23 '13 at 4:45 gaRex 23625 1 That error report was closed back in 2007 with the status of the patch being added to the Cron No Mta Installed Top Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending Post Reply Print view 7 posts • Page 1 of 1 Return These Aren't Roasted! Please be sure all scripts, files, and folders that are being used are set to executable.
any sane admin would ensure sane permissions/ownership on system files. –geirha Apr 10 '12 at 6:36 1 @pbr It seems we could go on forever, yes. Teenage daughter refusing to go to school What is the point of update independent rendering in a game loop? Crontab Not Running Shell Script 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 Bash Script This is mineCode: Select all-rw-r--r--. 1 root root 457 Sep 27 2011 /etc/crontab
Top OuldeFauder Posts: 71 Joined: 2010/10/12 17:16:07 Re: [SOLVED] Crontab does not run crontab scripts but runs
It turned out that I had forgotten to put a newline after that last line. navigate to this website If the --lsbsysinit option is given, then the names must not end in .dpkg-old or .dpkg-dist or .dpkg-new or .dpkg-tmp, and must belong to one or more of the following namespaces: By setting permissions to --x------, I can make the script executable without them being able to read (and perhaps accidentally change) it. I've written scripts to automate tasks for users who don't understand the intricacies, or don't want to bother with the drudgery. Cron: Unrecognized Service
The latter is not recommended. Maybe your cron script uses the command somecommand found in /opt/someApp/bin, which you've added to PATH in /etc/environment? These Aren't Roasted! More about the author Why is (a % 256) different than (a & 0xFF)?
So crontab should be up and running. Start Cron Do I have to install something or just restart one of the two? –hgoebl Oct 21 at 11:41 add a comment| up vote 14 down vote Permissions problems are quite common, Would the members of an online imageboard (or any community) be able to build a post-apocalytic society upon their reputation?
Suggestions to test or fix this for a failing command: Try running the command in sh to see if it works Wrap the command in a bash subshell to make sure share|improve this answer answered Oct 24 '12 at 7:22 community wiki JohnGH add a comment| up vote 3 down vote I was writing an install shell script that creates another script Website is down and there is no way to get to support for help Copyright © 2016 DigitalOcean™ Inc. Crontab Not Working Raspberry Pi Reply Log In to Comment Have another answer?
Here's a checklist guide to debug not running cronjobs: Is the Cron daemon running? Find a limit without l'Hospital. Quote Postby OuldeFauder » 2013/10/21 17:39:52 You are 100% correct, after chmod 644 File. click site If you're trying to use a program that isn't in your path, the shell will return error.
Specific dates are usually a problem as we rarely use them * * 3 1 * is not March 3rd. I usually rely on the various mail files all of which showed nothing. As an example, I've seen instances of sudo crontab -e used to run a script with root permissions, with a corresponding chown username file_output in the shell script. Can they be split into separate answers? –Eliah Kagan Nov 24 '11 at 23:07 4 Can you explain how 30 23 * * * translates to 11:15 PM? –JYelton Jan
This is crontab's attempt to try to "do what you want" when the time changes out from underneath it. In the shell this can be reproduced with goaccess -a -f /var/log/nginx/access.log > output.html < /dev/null The fix for goaccess is to make it read the log from stdin instead of Buffer issues? –Adam Matan May 31 '12 at 6:38 Any outputs or errors trriggred via cron jobs is gooing to sent to your mailbox.So we should never forget to double whammy. –WernerCD Jun 2 '11 at 4:22 4 +1 for env, I had completely forgotten about that command and thought PATH was working.
NOT working I had this: [email protected] ~ $ ps -ef | grep cron | grep -v grep User 2940 7284 pty1 19:58:41 /usr/bin/crontab SYSTEM 11292 636 ? 22:14:15 /usr/sbin/cro Basically I The last one hurts regularly unsuspecting users; in particular any script in one of these folders named whatever.sh, mycron.py, testfile.pl, etc. This does NOT work in cron: goaccess -a -f /var/log/nginx/access.log > output.html and goaccess shows the help page instead of creating the report. Restart cron and try it again without connecting to the internet (so the date doesn't have a chance to reset to one of the time servers).
How do I get per minute rsync files run in 6.4? Check if the script has an error, by doing a dry run on the CLI when testing your command, test as the user whose crontab you are editing, which might not Otherwise, STDERR may be sent via email to the user (assuming that email is working) or may go nowhere at all, depending on how Cron is configured. * * * * There is a file called cron.deny which will specify which users cannot use cron.
How can I claim compensation? Share on Twitter Replace previous answer? Next time, try logging the STDERR as well. However, I might want to run this command with several others from one file (thus making it easier to maintain) but make sure file output is assigned the right owner.