Tutorial by Examples

A command shell is a command line interface computer program to an operating system. Some Variants 1. Bash : Comes as default shell on ubuntu 2. KornShell(ksh) : To install ksh in Ubuntu $ sudo apt-get install ksh To start working with ksh $ ksh $ ps $$ PID TTY STAT ...

At the command prompt: $ echo "Hello World" Output: Hello World To create a script, create a text document with the following content: #!/bin/sh echo "Hello World" Save the script with the name hello.sh (or any filename) and make the script executable by giving the f...