/usr/sbin/crond: can't lock /var/run/crond.pid,

Linux and Unix-Like Red Hat
1

please tell pre-requisite steps to activate cron. i activated the cron but it not executing the script which i set in crontab entry.through root user i passed the service crond start it get start.but when i go to etc/init.d and passed crond stop command.it gets crond: can't lock /var/run/crond.pid, otherpid may be 3180: Resource temporarily unavailable
Please help to come out this problem

Regards,
Umair Iqbal

2

have a look at cron.allow and cron.deny files (location may depends on OS) make sure your user is allowed
check autorisation and ownership of /var/run/ tree ensure the user running the crond can write in it

3

Is there any relevant info in cron log?

Perhaps it's not an issue with the daemon itself but with the line you put in your crontab?