The lowest-priced item in unused and unworn condition with absolutely no signs of wear.The item may be missing the original packaging (such as the original box or bag or tags) or in the original packaging but not sealed. The item may be a factory second or a new, unused item with defects or irregularities.See details for description of any imperfections.
UNIX is a powerful operating system used all over the business world and in cyberspace. This revised edition contains tips and information on how to run the UNIX operating system. It explains the UNIX basics, but then moves on to how users can customize UNIX to perform several processes simultaneously. Users do t have to use all of UNIX's 200 commands, but are given advice on the ones that should help them tailor the system to their needs.