Split Variable on white space [duplicate]

Question

I'm trying to split a string into an array with the split occurring at the white spaces. Each block of text is seperated by numerous (variable) spaces.

Here is the string:

NUM8         host01    1,099,849,993  1,099,849,992             1

I have tried the following without success.

my @array1 = split / /, $VAR1;

my @array1 = split / +/, $VAR1;

my @array1 = split /\s/, $VAR1;

my @array1 = split /\s+/, $VAR1;

I'd like to end up with:

$array1[0] = NUM8
$array1[1] = host01
$array1[2] = 1,099,849,993
$array1[3] = 1,099,849,992
$array1[4] = 1

What is the best way to split this?

Answer 1

If the first argument to split is the string ' ' (the space), it is special. It should match whitespace of any size:

my @array1 = split ' ', $VAR1;

(BTW, it is almost equivalent to your last option, but it also removes any leading whitespace.)