unshift - to insert an element to the beginning of an array

shift will remove an element from the beginning of an array. unshift will insert one or more elements to the beginning of an array.

examples/unshift.pl

use strict;
use warnings;

my @animals = ('wombat', 'kenguru');
print "@animals\n"; # wombat kenguru

unshift @animals, 'koala';
print "@animals\n"; # koala wombat kenguru

my @birds = ('penguin', 'kiwi');
print "@birds\n";   # penguin kiwi

unshift @animals, @birds;
print "@animals\n"; # penguin kiwi koala wombat kenguru