Mailinglist Archive: opensuse (4570 mails)

[Randall R Schulz <rschulz@xxxxxxxxx>]

Albert,

On Wednesday 16 November 2005 23:39, Albert wrote:
> Hi All,
>
> I want to write a bash script which can be executed by cron every
> minute to check if an application is running. If it is not running
> the script should start it again.
>
> What I normally would do to check if it is running is execute:
>
> # ps aux | grep App

Keep in mind that such a command will return the ps output line for the 
grep itself, unless you use a pattern that is not self-recognizing.


> root      7479 15.4  0.7  21300  7816 pts/1    Sl   06:34   0:00
> /usr/local/bin/App
>
> root      7495  0.0  0.0   2880   700 pts/1    R+   06:34   0:00 grep
> App
>
> Is there a way of doing this? If it is, would it be reliable to use a
> bash script and cron for checking if the application is running?

The better way to get what you want is the pidof(8) command. Check it 
out and you'll be able to do what you want, I think.


> Albert


Randall Schulz