[Chapter 3] 3.2.101 oct

3.2.101 oct

oct EXPR

This function interprets EXPR as an octal string and returns the equivalent decimal value. (If EXPR happens to start off with 0x, it is interpreted as a hex string instead.) The following will handle decimal, octal, and hex in the standard notation:

$val = oct $val if $val =~ /^0/;

If EXPR is omitted, the function interprets $_. To perform the inverse function on octal numbers, use:

$oct_string = sprintf "%lo", $number;