# Package picard.reference

- Class Summary
  Class | Description
  --- | ---
  ExtractSequences | Simple command line program that allows sub-sequences represented by an interval list to be extracted from a reference sequence file.
  NonNFastaSize | A tool to count the number of non-N bases in a fasta file
  NormalizeFasta | Little program to "normalize" a fasta file to ensure that all line of sequence are the same length, and are a reasonable length!