How can I process a multi line string one line at a time in perl with use strict in place?

Question

I\'m trying to figure out the proper PBP approved way to process a multi line string one line at a time. Many Perl coders suggest treating the multi line string as a filehandle

Answer 1

Open a filehandle using a pipe from "dir" command.

E.g.

open my $FOO, "dir|" or die "Can not run 'dir': $!";