This also works: 

#!/usr/bin/perl
use strict;
use warnings;

my $data = "duck";
while(<DATA>) {
    chomp;
    my( $find, $replace ) = split ' ', $_, 2;
    if( $data =~ s[\Q$find][$replace]e ) {
        print "$data\n";
    }
}

__DATA__
duck luck

[download]
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
RIP an inspiration; A true Folk's Guy

In reply to Re^3: Store regular expressions in a file. by BrowserUk
in thread Store regular expressions in a file. by yoda54

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