You read lines from a file into a variable, and then change that variable - you don't change the file.

There are several options, perhaps the easiest is to write to a temporary file first, and then move this to the location of the old file.

Or you could use Tie::File - that changes the file that it's tied to.

In reply to Re: reg perl substitution by moritz
in thread reg perl substitution by pret_23_1

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