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Linux Script Not Working In Crontab


Which security measures make sense for a static web site? When it is run by cron, they never get removed. Why do Phineas and Ferb get 104 days of summer vacation? This kind of problem is very common by the way. have a peek here

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. share|improve this answer answered Feb 3 '15 at 21:01 inquist 313 Thanks will try tommorrow with the same and let you know the result. Your cron script must have executable permissions in order for cron to run it. Second, when I edited my crontab file and added the PATH as suggested and set the time to run at a later time, the pop up window didn't show. http://askubuntu.com/questions/23009/reasons-why-crontab-does-not-work

Crontab Not Working In Linux

Still no luck though, wierdly enough it still can't find the file. By running chmod +x /path/to/scrip the script becomes executable and should resolve this issue. IMHO, The more graceful option is to put it in /etc/crontab with username declared and proper permissions, so file_output goes to the right place and owner.

Lab colleague uses cracked software. asked 5 years ago viewed 22990 times active 5 years ago Linked 1 Why do I get different outputs when running my shellscript manually from when I run it with cron? How to add a node ID as class to the tag in D8? Cron No Mta Installed 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

This site is not affiliated with Linus Torvalds or The Open Group in any way. Bash Crontab Examples The "user" argument exists in /etc/crontab, but not the user-defined files. If you're trying to use a program that isn't in your path, the shell will return error. check it out UNIX is a registered trademark of The Open Group.

By setting permissions to --x------, I can make the script executable without them being able to read (and perhaps accidentally change) it. Cron Path sudo /etc/init.d/cron start can be used to start cron. In the below config you are trying to call backup.sh as same as in your shell prompt with sh prefix which may not work in cron. #Automatic MySQL backup 30 3 Cron treats the % character specially (it is turned into a newline in the command).

Bash Crontab Examples

So your commands won't run, and your log files won't be written... Did I cheat? Crontab Not Working In Linux Some systems require the running crontab in the command and specifying the file. Script Run Manually But Not In Crontab The results were obviously very different export paths etc.

In /etc/rsyslog.conf or /etc/rsyslog.d/50-default.conf the line: # cron.* /var/log/cron.log should be edited (sudo nano /etc/rsyslog.conf) uncommented to: cron.* /var/log/cron.log After that, you need to restart rsyslog via /etc/init.d/rsyslog restart or service navigate here Not the answer you're looking for? In case of problem, examine the log file for cron, /var/log/cron.log, and the Windows event log (using /usr/bin/cronevents) for information about the problem cron is having. no problem found. Cron Command Not Found

You can't guard against sysadmins making silly mistakes. If you cannot fix the problem, then report it to [email protected] To run multiple users, cron must change user context without knowing the passwords. http://itenlightenment.com/not-working/linux-usb-not-working.html How do I deal with my current employer not respecting my decision to leave?

Programs that act differently based on whether stdin is available or not will behave differently between the shell session and in cron. Crontab Permissions This is reloaded daily from a crontab entry like: #!/usr/bin/crontab # Reload this crontab # 54 12 * * * ${HOME}/bin/crontab The reload command above relies on an executable crontab with I created a file mycronjob with cron schedule, username & the command and copied it to the /etc/cron.d directory.

I now load from a file copy.

If the last entry in a crontab is missing the newline, cron will consider the crontab (at least partially) broken and refuse to install it." This behavior will be invoked when Code ladder, Robbers Can leaked nude pictures damage one's academic career? It was actually sliiiightly different in my case. –Izkata Jan 18 '12 at 15:16 5 @pbr If such directories are left writable to others, the system is already compromized. –geirha Crontab Environment Variables Coworker throwing cigarettes out of a car, I criticized it and now HR is involved more hot questions question feed lang-sh about us tour help blog chat data legal privacy policy

This will eventually correct cases where the wrong crontab is loaded on the wrong server. E.g. what do you mean here? http://itenlightenment.com/not-working/linux-not-working.html Browse other questions tagged linux debian shell-script cron or ask your own question.

Thanks a lot @tmow. –Vignesh Prajapati Jan 10 at 18:07 add a comment| up vote 3 down vote There are four common causes for commands working when typed in a terminal Your script should contain export DISPLAY=:0 somewhere. Not sure if that's the problem? You may also like Ultimate List of Beginner Linux Commands With Examples Samba File Sharing Configuration and Tutorial rsync over SSH: backup your data securely Linux cron job Tutorial Crontab Format

Note that a common workaround is to execute everything using root's crontab, which sometimes is a Really Bad Idea. It should be 600 and owner root:crontab. Also, if owner is root, do what @Guru saw, run script with sudo. –Zlatan Mar 6 '13 at 8:25 So, now I changed my script owner to srvlinux01 (main I still fail to see why it's a bad idea to use PATH though.

but no luck –kal Oct 23 '14 at 15:55 after debugging a little further the problem is with $RANDOM (see above) –kal Oct 23 '14 at 16:14 UNIX is a registered trademark of The Open Group. The entire command portion of the line will be executed by /bin/sh or by the shell specified in the SHELL variable of the cronfile. The first involves using absolute paths in your script.

shell shell-script cron ksh share|improve this question edited Feb 3 '15 at 23:24 peterh 1,4013924 asked Feb 3 '15 at 20:56 neal mukherjee 613 1 If it works from the If I just copy the command and paste it into the terminal it runs normally and makes the backup! –Mateusz Kapusta Mar 6 '13 at 8:35 Could it be Would you like to answer one of these unanswered questions instead? I get absolutely nothing.

Why were pre-election polls and forecast models so wrong about Donald Trump? I kept doing ps -ef | grep foo –ripper234 Mar 17 '11 at 17:01 3 You could also use pidof cron which will omit results for other applications that also