Perl has a syntax for embedded documentation called POD (perlpod). It's possible that that's what you're thinking of. If the author of the original file was kind enough to include any of this documentation in the file, then you can read it on the command-line with the pod2text command. Just enter: 

pod2text <myscript.pl>

[download]

And that will print out any POD that exists in the file.

In reply to Re: Perl command line switches by camtauxe
in thread Perl command line switches by Irakro1997

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