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Re: How to know if the System Preferences app is running
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Re: How to know if the System Preferences app is running


  • Subject: Re: How to know if the System Preferences app is running
  • From: Chris Ridd <email@hidden>
  • Date: Tue, 26 Nov 2002 19:32:58 +0000

On 26/11/02 6:04 pm, TACKEL <email@hidden> wrote:
> PS - Although it's not important using NSTask, the "grep" command I run inside
> the task doesn't work. Do you know how I could run it? Is it necessary to
> create
> another task and pipe both tasks?
>
> [checkTask setLaunchPath: @"/usr/bin/top"];
> [checkTask setArguments:
> [NSArray arrayWithObjects: @"-l1", @"|", @"grep", @"System\\ Pre", nil]];

Yes, create two tasks and pipe them together, which is what a Unix shell
would do.

What you're doing is the same as typing this at a shell prompt:

/usr/bin/top -l1 "|" grep "System Pre"

Read the man page for a shell to find out how it parses commands you give
it!

Cheers,

Chris
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References: 
 >How to know if the System Preferences app is running (From: TACKEL <email@hidden>)

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