[X-Unix] Command to find if a certain app is running?

[Steve Morris]

 # outputs 1 if command is found, 0 otherwise.
running=`ps axco command | grep -c $appName`

if $running ; then
    echo $appName found
else
    echo $appname not found
fi

On Fri, Mar 27, 2009 at 9:42 AM, Jerry Krinock <jerry at ieee.org> wrote:

>
> On 2009 Mar 27, at 05:01, Eric F Crist wrote:
>
>  Sometimes, you need to add a few w's to the command to parse it properly:
>>
>
> Yes, it took me about 5 years of using bash to learn why ps didn't always
> work.
>
> Anyhow, thanks Christoph.  I was hoping there might be something that would
> identify an app from Launch Services database, but  then I figured that
> since I'm mainly concerned with false alarms and can tolerate misses, I
> could use ps and grep...
>
> # Assume that $appName is both the package name and the executable
> # name of the desired app.  Warning: Either or both of these
> # assumptions can be wrong.
> appsRunning=`ps -alxww | grep -c "$appName.app/Contents/MacOS/$appName"`
> # If $appName is running, results count will be 2, the second
> # one being the grep process itself.  Subtract that one.
> let "appsRunning -= 1"
> if (($appsRunning > 0))
> then
> echo "$appName is running"
> else
> echo "$appName is not running"
> fi
>
>
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