First help: How (Not) To Ask A Question

Second - what have you tried?

Third, this is an X-Y question: "How do I do X with Y?" Why don't you want to do X with X? You want to split on colons, and get the second field, that sounds exactly like:

  my $second_field = (split /:/, $string)[1]
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Or maybe I'm just not reading the problem right - there's not a lot of info to go on here.