This is a short tutorial on how to get started analyzing FASTA files via the command line.Code is intended for use on an Ubuntu 16.04 LTS OS, but it may work on other Unix or Unix-like systems.Here we will mainly use standard Unix commands as well as the seqtk tool. Information on seqtk, including information on installation, can be found here: https://github.com/lh3/seqtk