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If the directory is network shared, then I often use crontab.$(hostname) as the name of the file. Cron is already installed as a service under account LocalSystem. a rake task on a Rails application may need to be in the application root for Rake to find the correct task, not to mention the appropriate database configuration, etc. share|improve this answer answered Mar 17 '11 at 19:59 Gilles 377k726911135 1 I'd guess Solaris, or maybe early Solaris. news

Did I cheat? For example, if your script is located at /path/to/script.phpand you're trying to open a file called file.php in the same directory, you cannot use a relative path such as fopen(file.php). Debian: service cron start or service cron restart Is cron working? * * * * * /bin/echo "cron works" >> /file Syntax correct? Your script should contain export DISPLAY=:0 somewhere. http://askubuntu.com/questions/23009/reasons-why-crontab-does-not-work

Crontab Not Running Shell Script

Browse other questions tagged cron or ask your own question. sudo /etc/init.d/cron start can be used to start cron. 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.

  • Be VERY careful when using the percent (%) sign in your command.
  • From the man file: The entire command portion of the line, up to a newline or a "%" character, will be executed by /bin/sh or by the shell specified in the
  • This forces jobs to be run by the same anacron process, sequentially, and without delay.
  • If you really want to keep it where it is now, I'd suggest looking in /var/log/cron and making sure that it is executing at all.

A common practice is appending your script with the .sh file extension. chmod +x pushCheck.sh 2.) is /home/pushCheck.sh the correct directory? up vote 21 down vote favorite 6 I used crontab -e to add the following line to my crontab: * * * * * echo hi >> /home/myusername/test Yet, I don't Cron No Mta Installed And this is the same if you omit the brackets.

Excuse the stupid questions Adv Reply August 10th, 2008 #4 G1ZmO65 View Profile View Forum Posts Private Message Gee! Crontab Not Running Centos Eventually, cron will start to see things your way and will do as he's told. I checked my old 6.3 server and the perms were also 644.Thanks for your input. http://serverfault.com/questions/449651/why-is-my-crontab-not-working-and-how-can-i-troubleshoot-it crontab runs under the permissions of the crontab user.

To see the difference, add a dummy job like this: * * * * * env > /tmp/env.output Wait for /tmp/env.output to be created, then remove the job again. Crontab Not Running Python Script If you want cron to send mail to a different account then you can set the MAILTO environment variable in the crontab file e.g. Tried using service utility and it said cron was already running. Some Linux distributions (eg, Red Hat) also have /etc/cron.{hourly,daily,weekly,monthly} which are directories, scripts inside which will be executed every hour/day/week/month, with root privilege.

Crontab Not Running Centos

IIRC 'crontab -e' does a syntax parse after you've edited the file as well - but that might not be universal. –pbr Apr 8 '12 at 22:47 add a comment| up http://unix.stackexchange.com/questions/9466/why-did-my-crontab-not-trigger When I pasted my LANG environment variable into the top of my crontab, i.e. "LANG=en_GB.UTF-8", the grep regular expressions all worked fine when the script was called from crontab. Crontab Not Running Shell Script thank you –IljaBek Oct 2 at 10:47 add a comment| up vote 9 down vote Insecure cron table permission A cron table is rejected if its permission is insecure sudo service Crontab Not Running Bash Script Please write only cron-specific issues, e.g.

Finally figured out that my Date didn't have an escape character (backslash for any other folks looking for what the escape character is). http://haiteq.com/crontab-not/cron-job-not-working-linux.php 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 I have a script running every minute with crontab. When I pasted my LANG environment variable into the top of my crontab, i.e. "LANG=en_GB.UTF-8", the grep regular expressions all worked fine when the script was called from crontab. Cron: Unrecognized Service

A question can only have one accepted answer. The "minute" field will become ineffective after the hour is changed. cron share|improve this question edited Mar 17 '11 at 22:46 gabe. 5,07762948 asked Mar 17 '11 at 14:44 ripper234 5,585265880 add a comment| 8 Answers 8 active oldest votes up vote More about the author 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.

I have also run across issues will lists like 1-5 or 1,3,5. Start Cron If you have root access, you can stop the cron daemon and start it in debug mode. The hash (#) sign represents a comment which means anything on that line is ignored by cron.

up vote 116 down vote favorite 81 This is a Canonical Question about using cron & crontab.

Making A Solid Mesh Melt? 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. I cleared it to see what future info it would produce as the entries went back for a week that I have been researching this problem. Crontab Not Working Raspberry Pi service cron status Easy way on Debian systems to check the status of cron.

However, the command will never run. The best choice is to ensure that your crontab has a blank line at the end. 4th Berkeley Distribution 29 December 1993 CRONTAB(1) share|improve this answer edited Feb 2 '11 at Proving convergence of real sequence How to prove that authentication system works, and that the customer is using the wrong password? click site These fail under crontab, although some will work with input redirection.

The following will only log to STDOUT, not STDERR: * * * * * echo hi >> /home/myusername/test Try to make sure there is an explicit clause for STDERR as well. The daily.sh file has following code in it. share|improve this answer edited May 11 at 10:36 community wiki 8 revs, 7 users 65%geirha I think I just fell for this, and newline at end... However, $PATH seems to not have been expanded, causing all my jobs to fail.

Please include one reason per answer - details about why it's not executed - and fix(es) for that one reason. Note that a common workaround is to execute everything using root's crontab, which sometimes is a Really Bad Idea. The reason is that cron does not have the same PATH environment variable as the user. Build me a brick wall!

Pick Randomly Between -1 or 1 Wrong way on a bike lane? You can check /var/log/ for entries relating to cron. Finally figured out that my Date didn't have an escape character (backslash for any other folks looking for what the escape character is). Otherwise you need to have or to create a privileged account.

This gives access to all network drives but only allows you as user. 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 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 The default path is usually /bin:/usr/bin so only standard commands will run.

How do I deal with my current employer not respecting my decision to leave? So constructions like the following won't work: SOME_DIR=/var/log MY_LOG_FILE=${SOME_LOG}/some_file.log BIN_DIR=/usr/local/bin MY_EXE=${BIN_DIR}/some_executable_file 0 10 * * * ${MY_EXE} some_param >> ${MY_LOG_FILE} This is because variables are not interpreted in the crontable: all Ask Ubuntu works best with JavaScript enabled UbuntuCommunityAsk!DeveloperDesignDiscourseHardwareInsightsJujuShopMore ›AppsHelpForumLaunchpadMAASCanonical current community chat Ask Ubuntu Ask Ubuntu Meta your communities Sign up or log in to customize your list.

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