shift - remove the first element of an array, and return it


NAME

shift - remove the first element of an array, and return it


SYNOPSIS

shift ARRAY

shift


DESCRIPTION

Shifts the first value of the array off and returns it, shortening the array by 1 and moving everything down. If there are no elements in the array, returns the undefined value. If ARRAY is omitted, shifts the @_ array within the lexical scope of subroutines and formats, and the @ARGV array at file scopes or within the lexical scopes established by the eval '', BEGIN {}, INIT {}, CHECK {}, and END {} constructs.

See also unshift, push, and pop. shift and unshift do the same thing to the left end of an array that pop and push do to the right end.

 shift - remove the first element of an array, and return it