home | O'Reilly's CD bookshelfs | FreeBSD | Linux | Cisco | Cisco Exam  

3.2.108 pop




This function treats an array like a stack - it pops and returns the last value of the array, shortening the array by 1. If ARRAY is omitted, the function pops @ARGV (in the main program), or @_ (in subroutines). It has the same effect as:

$tmp = $ARRAY[$#ARRAY--];


$tmp = splice @ARRAY, -1;

If there are no elements in the array, pop returns the undefined value. See also push and shift . If you want to pop more than one element, use splice .

Note that pop requires its first argument to be an array, not a list. If you just want the last element of a list, use this: