That's what map is for: 
my @result = map { [split /\s+/] } split /\n/, $cmd_output

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That leaves you with an array of arrays like [ ['2009-11-05 17:59:52', '1.501'], ...]. If you prefer a hash, simply make it 
my %result = map { (split /\s+/) } split /\n/, $cmd_output

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You probably have to ensure you exclude the header lines in your input file, like so: 
my @result = map { [split /\s+/] } grep { /^\d+/ } split /\n/, $cmd_ou
+tput

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This only processes lines that start with a couple of numbers. It should be sufficient in this case. Read up about grep, map and sort. They're powerful tools.


holli

You can lead your users to water, but alas, you cannot drown them.

In reply to Re: Better way to perform "double split" ? by holli
in thread Better way to perform "double split" ? by perlpal

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