Thanks! looks like I found a winner. I've been using pkill for a while, but I had no idea about pgreg!!
Someone Said:
>you could try
>
>pgrep X
>
>at least it would be one less process forked and exec'd, compared to running ps and grep separately :)
>
>plus, you don't even have to parse its output, you can check its return status. (0 means there was a process whose name matched)
>
>pgrep is a pretty cool program you'll probably want to know about anyway, along with its sister pkill.
>
>and 'qpkg -f /usr/bin/pgrep' tells me it's in the procps package, so you probably already have it on your system.
>
>On Thu, Nov 18, 2004 at 05:03:28PM -0700, Jared Anderson wrote:
>> I just want to check if X is running - for instance: suppose I create an edit script, to open, say vi, if X is not running, or gvim if it is.
>>
>> I know I can ps -a | grep; but it doesn't seem like the most efficient way.
>> Also, checking the DISPLAY variable worked rather well until now.
>> I could also probe the exit status of many commands.
>>
>> I am just curious what others do.
>>
>>
>>
>> Somebody once said:
>> >I think it may help if you clarify the question a little bit.
>> >
>> >You are running a script and it needs to ceck for the presence of a
>> >running X server?
>> >
>> >Or are you trying to run X and unable to get the display using a
>> >specific driver, and there are trying to troubleshoot via a script?
>> >
>> >The methodology shouldn't be any different in actuality, just pipe ps
>> >ax to match X via egrep.
>> >
>> >
>> >On Thu, 18 Nov 2004 15:02:14 -0700, Jared Anderson
>> ><plug@thegoldenedge.com> wrote:
>> >> Just curious of the most effective way to determine if X is running in a shell script. I have used a few ugly methods of such, but they are ugly: the most recent is no longer effective while using radeonfb driver and splashutils. Any useful input would be appreciated!!
>> >>
>> >> Thanks.
>> >>
>> >> -----
>> >> Computers are like air conditioners. Both stop working, if you open windows.
>> >> -- Adam Heath
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