Cron
 

I'm currently trying to get cron to start a script (I named it shell) every 15 minutes. When I run it manually from the terminal it works fine. But when cron does it it doesn't work. These are my scripts.

/root/shell:

and when I crontab -e it comes out with:
Does anyone know whats wrong? Please help!

That does seem odd. I assue you are putting it in the crontab of the same user you are running it as?

I have 2 suggestions -
1) forget the script and make your crontab:
15,30,45,59 * * * * /usr/bin/ez-ipupdate -c /usr/local/bin/ez-ipupdate.conf
2) In either case - create a log file:
15,30,45,59 * * * * /path/to/command 2>&1 > /tmp/mycron.log

EDIT: Well I tryed your way at voila... It worked! As for the log file Ill figure out how to get that working. Thank You!!!

Ok Ill try that.. Thank you.

crontab writing
 

HappyDude i see David has already posted that message and the procedure , anyway one short process to that
15,30,45,59 * * * * /usr/bin/ez-ipupdate -c /usr/local/bin/ez-ipupdate.conf

is */15 * * * * /usr/bin/ez-ipupdate -c /usr/local/bin/ez-ipupdate.conf and subsequently so !!


That is same , only a shorter writing

abt some informal discussion ... the general syntax of writing this :

minutes hrs day_of_month month day_of_week which takes inputs in the form (0-59) (0-23) (1-31) (1-12) (0-6) respectively


Thus :

0 1 * * 1-5 command (will run every monday-friday at 1 am)
0 1 * * 1,3,5 command (will run every mon,wed,fri at 1 am)
10 2 1 * * command (will run at 2:10 am on the first of every month)
0 1 1 1 * command (will run at 1 am on January 1 every year)

Just pure calculation nothing else .. do let me know if it works
Best of luck

Shaheen

Well thanks for the help but I sorta already got that part working using davids version so now if I used your version it would be more typing.