Bash Scripting in Linux

Bash scripting is nothing but the combining multiple simple tools to solve a more complex problem, usually using pipes to direct the output of one command to the input of the next. This is a style of programming which is worth knowing; too many people write a whole program to achieve something that can be done by combining a few existing tools on the command line.

If you want to work as a system admin then you should know how to write bash script. Today most of the IT companies uses LINUX/UNIX servers so to work on those server you should know BASH scripting.