On Thu, 14 Feb 2008, gw@geeklan.com wrote:

Howdy folks.

I'm on the final stages of this mirror setup.

I'm unsure of how to handle locking with cron - saw an app called lockcron, but I have a feelingg this isn't the way and the setup page recommends asking the list so..

How do I stop cron from overrunning? :)

For my mirror, I have cron run a script, which looks like this:

#!/bin/bash

### Lock file if [ -f /tmp/update-mirrors.lock ] then echo "Lock file exists" && exit 1 else date >> /tmp/update-mirrors.lock fi

### Do a bunch of stuff

### Remove lock file /bin/rm -rf /tmp/update-mirrors.lock

And then to /etc/rc.local I add

/bin/rm -rf /tmp/update-mirrors.lock >/dev/null 2>&1

(to make sure that if the box reboots during a run, the lock file will be removed).

DR