DTR Business Systems has sold, integrated, installed, configured, and supports thousands of UNIX systems across the continent. Steve "Mor" Moritsugu (the actual writer) got his BS at Caltech and for over 20 years has specialized in Computer Operating Systems. He is a senior software engineer and is the support supervisor at DTR. He has been a featured speaker at computer conferences world-wide and has written articles for various computer magazines. In addition, Mr. "Mor" also teaches UNIX Operating System, System Administration, and Shell Script Programming at Santa Ana College in Southern California..