Your code isn't modifying the file because it's not writing to it; the substitution only affects the string in memory. That it has been read from a file is irrelevant at that time.

The easiest way to accomplish what you want is to use perl's -i switch; see perlrun for more.

In reply to Re: Modifying a file using RegEx by AppleFritter
in thread Modifying a file using RegEx by gotsilk

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