Question

3

How to activate this crontab?

rated 0 times [ 3] [ 0] / answers: 1 / hits: 74440 / 3 Years ago, sat, october 23, 2021, 7:40:26

I have a setup as below but its never getting executed.

$ chmod +x /var/tmp/myscript.sh

$ vim /var/tmp/crontab.sh;

* * * * * sleep(10); /var/tmp/myscript.sh

$ crontab /var/tmp/crontab.sh

Now just, noticed its not working. What am i doing wrong?

$ grep CRON /var/log/syslog

Nov 28 15:20:01 sun CRON[1768]: (sun) CMD (sleep(10);/var/tmp/myscript.sh)

Nov 28 15:20:01 sun CRON[1766]: (CRON) error (grandchild #1768 failed with exit status 2)

Nov 28 15:20:01 sun CRON[1766]: (CRON) info (No MTA installed, discarding output)

Follow up:

$ vim /var/tmp/crontab.sh

* * * * * sleep 10; /var/tmp/myscript.sh>/dev/null 2>&1

$ tail -f /var/log/syslog | grep CRON

Nov 28 15:50:02 sun CRON[2301]: (sun) CMD (sleep 10; /var/tmp/myscript.sh>/dev/null 2>&1)

Nov 28 15:51:01 sun CRON[2312]: (sun) CMD (sleep 10; /var/tmp/myscript.sh>/dev/null 2>&1)

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iething

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2 Years ago

answered 3 Years ago armis · Accepted Answer

sleep does not take the argument in parentheses (like in C), so it should be

* * * * * sleep 10; /var/tmp/myscript.sh

Always test the commands in the system shell before feeding it to cron ;).