Sangeetha Naik writes "How many of us haven't been intimidated by the weird black Unix shell, at least once. A blank empty prompt that dares us to type commands.
Well, the Unix Shell is the most versatile and powerful tool on the Unix platform. It interprets the commands typed in by the user, executes them and outputs results to be viewed by the user. The Unix shell comes in many flavours. Common favorites are bash(GNU Bourne Again-SHell) and csh(C-SHell). This article will explain many commonly used commands."