I am trying to sort a list with values that look like: 
000_FFF0_0000
0011_FFF0_0010
00111_FFF00_00011

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0 being an integer and F being an alpha character. My code currently looks like: 
foreach my $peptide_id (sort { 
                ($a =~ /(\d*)_FFF(\d*)_(\d*)/)[0] <=>
                ($b =~ /(\d*)_FFF(\d*)_(\d*)/)[0]}

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This works, but is only sorting on $1 (first \d*). I am unsure how to sort on all 3 regex extractions. Ideally, it would combine the 3 ($1$2$3) and just sort on that value. But can't figure out how to do this. Any help would be greatly appreciated!

In reply to Sorting on multiple variables by cbdoc

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