Nice approach. And my be merged with mine, e.g.:
#!/usr/bin/perl -l
use strict;
use warnings;
my @fh=map {
open my $fh, '<', $_ or die "Can't open `$_': $!\n";
$fh } @ARGV;
no warnings 'uninitialized';
print while $_=join '',
map { chomp(my $line=<$_>); $line } @fh,
__END__
However:
- you should s/undefined/uninitialized/;
it may not be fully reliable if empty lines are to be expected in the files.
Update: the second point was a thinko as Zaxo pointed out.
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