Crontab at reboot

[Xplorer4x4]

I generally find crontab easy to use but one thing no tutorial I found seems to cover is how to set something to reboot and also deal with a 15 min check to execute something if it is not already running. For example, I want the dropbox daemon to run after I reboot, but if I disconnect the hdd with the dropbox folder to burn a disc, the daemon still does not run after reconnecting the hdd unless I execute it manually. So I want crontab to start it after a reboot but also run it every 15 min if it died due to hot swapping drives.

Sent from my DROID2 Global

[james147]

You could also writing an upstart script for this rather than a cronjob, that way upstart can auto respawn the process if it crashes, this could also be combined with a udev rule to start the daemon when the drive is pluged in and possiblly stop it when it is unpluged. I think this approch is more elegent, and it will start the dropbox daemon sooner after you plug in the drive

As for cron, you would need two rules:
@reboot command
*/15 * * * * command
where command could be a script to check if the daemon is already running/the drive is mounted or not and start it if they are.

[Xplorer4x4]

Ok thanks for the tips james! I was trying */15 * * * * command but it would launch multiple daemons for some programs.