You can use this below code for extracting the version 

  use strict;
use warnings;

while (my $line = <DATA>) {
    chomp $line;
    if ($line =~ /^[a-z-]+(\d.*)$/) {
      print ">>$1<<\n";
    }
}


__DATA__
mono-basic-2.10
mono-2.10.2-r1
mono-2.10.5

[download]

In reply to Re: regex behaves differently in split vs substitute? by leslie
in thread regex behaves differently in split vs substitute? by raygun

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