That's a regex. 'm' means match the pattern following, and '$' means 'anchor' match to end of string ie there must be no chars after 'mp3' or 'rm'.
See http://perldoc.perl.org/perlrequick.html and http://perldoc.perl.org/perlretut.html

Cheers
Chris

In reply to Re^3: How to search recursively and return specific patterns by chrism01
in thread How to search recursively and return specific patterns by dilip_val

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