d6c27972_Perl_5_by_Example__Functions_Table_5_2_Array_Functions_Description
[Function] unshift(ARRAY1, ARRAY2) [Description] 
Adds the elements of ARRAY2 to the front of ARRAY1. Note that the added elements retain their original order. The size of the new ARRAY1 is returned.
Perl 5 by Example: Functions
Description