Array in perl

1)Length of Array:

To find  the length of any given array just use a scalar variable and do the following:

$len=@array;

where len is a scalar variable and array is an array variable

Program Code:
#! /Perl/bin/perl

@array=(1,2,3,4,5,6);
$len=@array;

print("Length of array is $len");

Output:
Length of array is 6

2)Array Modification:

We can modify array elements after defining an array.We can add more elements in the array by using following statement :
@array[3..6]=(6,7,8,9);

Program Code:
#! /Perl/bin/perl

@array=(1,2,3);
print("Original Array \n@array\n");
@array[3..6]=(6,7,8,9);
print("Array after modification \n@array");

Output:

Original Array
1 2 3
Array after modification

1 2 3 6 7 8 9