Simply put, a Shell Script is a program that is run by a UNIX/Linux shell. It is a file that contains a series of commands which are executed sequentially as if they were entered on the command line ...

Bash scripting commands are as varied as the command set that Unix's terminal has. Bash commands can also use parameters, expanding their usability and making them a powerful way of controlling Linux.

Everything needed to use the same script with Linux and all varieties of UNIX is present: Linux, Solaris, AIX and HP-UX have one subsection each. The first chapter is a quick tutorial of shell ...