The problem is that perl is starting cmd.exe that is then asked to run the non-existent command. So the pid is for the shell instance. (Watch the taskmanager to see this is happen.)

To avoid that problem you can try passing the fully qualified pathname of the command you want to run.

Without the command being fully qualified, 'caeser' might be caeser.exe or caeser.bat or caeser.cmd or caeser.pl or caeser.vb etc. And it might be in the current directory, or somewhere in the path or.... Rather than Perl having to emulate all of the possibilities, unqualified commands are passed to the shell to do what it does.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority". I knew I was on the right track :)
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re: Capturing errors from 3-arg pipe open in ActivePerl 5.020 by BrowserUk
in thread [SOLVED] Capturing errors from 3-arg pipe open in ActivePerl 5.020 by ateague

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