Perl in a Nutshell, 2nd Edition

Name

hex

Synopsis

hex hexnum
                  

Converts a hexadecimal string hexnum into its equivalent decimal value. If hexnum is omitted, it interprets $_. The following code sets $number to 4,294,906,560:

$number = hex("ffff12c0");

To do the inverse function, use:

sprintf "%lx", $number;   # That's a letter 'l', not a one