https://www.ingber.com/utils_gzip.txt gzip will expand .gz, .Z, and .zip files (not .zip archives). Version of gzip for just about any system can be obtained from http://www.gzip.org/ Versions for many systems are in ftp://prep.ai.mit.edu/pub/gnu $Id: utils_gzip.txt,v 1.2 2010/07/17 02:01:50 ingber Exp ingber $