I like a magic %! approach, say
use Errno;
sub Fudge {
my @r;
while( my($k,$v)=each %!){
$v and push @r, $k
}
join qq/\n/,
int($!).q/ /.$!,
int($^E).q/ /.$^E,
@r, q/ /
}
open my($fh),qw/ < ./ or die Fudge();
__END__
13 Permission denied
5 Access is denied
ERROR_INVALID_DATA
EMR_SETBRUSHORGEX
EACCES
at - line 13.
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