Works fine for me:

$ cat > foo.tmp
gary is the best
frank is the worst
$ perl -i.bak -p -e 's/gary/harry/g;' foo.tmp
$ cat foo.tmp
harry is the best
frank is the worst

[download]

Bear in mind that by default regular expressions are Case-Sensitive.

Caveat: I'm using neither Activestate nor Windows.

To find out about the switches like -p and -e see perlrun. For regular expressions, try perlre. To get started in general try perlintro. Welcome to the wonderful world of Perl!

In reply to Re: Text not being replaced in file via Windows CLI ... by hippo
in thread Text not being replaced in file via Windows CLI ... by perlynoob

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