Try 
open (FH,"test.test") or die;

while(<FH>) {
    if ($_ =~ /"(.+?)"/) {
       print "Matched: $1\n";
       s/$1/New string/;
    }
    print;
}

[download]
P.S. You can make a one liner out of this
If you spot any bugs in my solutions, it's because I've deliberately left them in as an exercise for the reader! :-)

In reply to Re: Regex: Changing $1 by space_monk
in thread Regex: Changing $1 by packetstormer

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