You'll also find informative reading in the (on-site) links you'll find with Super Search and likely with a simple search using Google, DuckDuckGo or some other search engine.

And those are recommended as step one before the next time you ask such an inspecific question.

Come, let us reason together: Spirit of the Monastery

In reply to Re: Calling external commands through my script by ww
in thread Calling external commands through my script by Anonymous Monk

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