perl - Converting text MB/GB to value -

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i have variable contains file size:

my $tx = "41.4 mb";

or 

my $tx = "34.4 gb";

how go converting kb value. if tx contains mb * 1024, , if tx contains gb * 1024 * 1024?

you need separate out , test units.

use strict; use warnings;  sub size_to_kb {     $size = shift;     ($num, $units) = split ' ', $size;      if ($units eq 'mb') {         $num *= 1024;     } elsif ($units eq 'gb') {         $num *= 1024 ** 2;     } elsif ($units ne 'kb') {         die "unrecognized units: $units"     }      return "$num kb"; }  print size_to_kb("41.4 mb"), "\n";  print size_to_kb("34.4 gb"), "\n";

outputs:

42393.6 kb 36071014.4 kb

< / hand holding >


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