See quotemeta and Iterator::Diamond 

#!/usr/bin/perl --
use strict; use warnings;
use Iterator::Files;

my $search = quotemeta `uname -r`;
my $input = Iterator::Files->new( files => [ '/etc/hosts' ], );

while( <$input> ){
    s/$uname/$answer1/g;
    s/\Qdomainsuffix.net\E/$answer4/g;
}

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In reply to Re: Search and replace within a file by Anonymous Monk
in thread Search and replace within a file by muizelaar

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