how to schedule a script in linux

farnaw4u · 03-05-2010, 11:51 PM

Hi

i have oracle installed on Linux i want to schedule a script "backup.sh" to run in oracle user.

oracle@linux1]crontab -e
*/2 * * * * /tmp/backup.sh

this script does not execute by cron.

BUT

oracle@linux1 tmp] ./backup.sh ------executes successfully

I dont know why the script is not being executed by cron

kindly help me

nodopro · 03-06-2010, 12:37 AM

Make sure crond service is running.

Code:

# service crond status
crond (pid  2775) is running...

linuxlover.chaitanya · 03-06-2010, 12:42 AM

If even cron is running, try this

bash /tmp/backup.sh in the cron file.

giammy · 03-07-2010, 01:27 PM

Quote:

Originally Posted by farnaw4u

Hi
...

I dont know why the script is not being executed by cron

kindly help me

Hi,

please, remember that cron commands are executed with a different
environment: for example you do not have the PATH, so commands that
are found from command line are not found from cron.

Just a supposition!

bye
giammy

repo · 03-07-2010, 01:55 PM

To test, create a simple script which will create a file .
make sure to give the whole path to the commands and files.
See if it works.
Then you know the problem is the script, not cron

chrism01 · 03-07-2010, 06:31 PM

show the script content; also if it has an error either the cron job owner or root should get an email from cron re any errors. Try

mailx

from the cmd line as owner and as root to see.
Also, check /var/log/messages.