Just for future reference, a "command line call" can usually be converted into a "program" fairly easily:

c:\@Work\Perl\monks>perl -MO=Deparse -pe "s#\bold(?=/path/to/some/)#ne
+w#g"
LINE: while (defined($_ = <ARGV>)) {
    s[\bold(?=/path/to/some/)][new]g;
}
continue {
    die "-p destination: $!\n" unless print $_;
}
-e syntax OK
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See O and B::Deparse.