You can create a script file that is called by cron at whatever interval you find appropriate.

You can decide to have it analyze any of the below for indicators if the service should be restarted.
* the output of a log file to make decisions
* verify open ports if it is a network service
* check the output of lsof or ps if it is a system service

However when a service goes down it may be due to some configuration issue which will not be resolved with a service restart, rather than having it continually attempt to restart a service it may be safer to have it alert you of the failure so you can address it and have confidence in continued operations.

ajazshariff wrote:

Thanks Karma

Can u please tell me any websites where i can get such scripts.

If you are looking for a script rather than an application to manage the apps then first you need to know exactly what service you are evaluating to understand what tracking method bet fits your needs. Can you tell me what program/daemon you want to evaluate for automatic restart?