BioPerl Function files index index of files dna files mmp3.dna mmp10.dna mmp11.dna pccx1.dna protein files mmp3.aa mmp10.aa mmp11.aa pccx1.aa znf148.aa znf148.dna program files cat_dna.pl concatenate sequences count.pl count nucleotides of dna count_bench.pl benchmark example using Benchmark dna2rna.pl transcribe dna to rna motif.pl search files for motifs print_dna.pl print dna read_file.pl read files revcom.pl reverse complement dna testio.pl test io: sip, slurp, array time_count.pl shows time( ) is insufficient for benchmarking chapter examples bioref.pl perl references example reading bio data biodata.txt text read by bioref.pl palindrome.pl simple palindrome testing testch2.pl simple examples of transliteration