Linux is a popular clone of the Unix Operating Systems for personal computers and workstations. First developed by Linus Torvalis at the University of Helsinki in Finland, it is now freely available along with all of the popular Unix utilities that have been ported to Linux. These Linux utilities are obtainable from Free Software Foundation's GNU project. Linux systems are popular for web and file servers and programmers' workstations. Linux typically runs applications faster than other operating systems commercially available in the PC environment.

• Linux Fundamentals
• Advanced Linux Programming