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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: "Clark S. Cox III" <email@hidden>
  • Date: Tue, 26 Nov 2002 14:34:52 -0500

On Tuesday, Nov 26, 2002, at 13:04 US/Eastern, TACKEL 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, in this code, when top executes, it's argv looks like this:

argv[0] = "/usr/bin/top"
argv[1] = "|"
argv[2] = "grep"
and so on.

In other words, you are passing "|" as an argument, not as a command to the shell.
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 >How to know if the System Preferences app is running (From: TACKEL <email@hidden>)

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