That code won't work.

Put "use strict; use warnings;" in

use strict;
use warnings;
sub firstline {
  open (my $in, shift) && return scalar <$in>;
  # no close() required
}

print firstline("/etc/hosts");
[download]

and you'll get:

Global symbol "$in" requires explicit package name at firstline.pl lin
+e 4.
Execution of firstline.pl aborted due to compilation errors.
[download]

If you don't use strict/warnings, you'll simply get an empty line.

Update: Removed the "; 1 " which I putted in to make the code at least print out something.

---

s$$([},&%#}/&/]+}%&{})*;#$&&s&&$^X.($'^"%]=\&(|?*{%
+.+=%;.#_}\&"^"-+%*).}%:##%}={~=~:.")&e&&s""`$''`"e

---

In reply to Re: what is the return value by Skeeve
in thread what is the return value by arasumg

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