These are the command-line bioinformatics utilities associated with the UCSC genome browser. Care has been taken to install only the freely available tools. However, the license information at https://genome.ucsc.edu/license/ is not entirely clear and we may add non-free utilities in the future. Contact UCSC if you are using this port for commercial purposes. WWW: http://hgdownload.cse.ucsc.edu/admin/exe/