Basic shell commands in Linux ( For Linux Beginners )

Posted at August 22, 2016 at 11:08 am by Jithin

A shell is a user interface that provides access to an operating system. It is a program that takes your commands you type from the keyboard and gives them the operating system to perform the required task. After the task is completed it displays the output.  A shell is an environment in which we can run our commands. A program called 'bash' acts as the shell program in most Linux systems. The prompt, $, which is called command prompt, is issued by the shell. While the prompt is displayed, y   [...]

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What and how to use UNIX Variables with examples

Posted at August 22, 2016 at 10:31 am by Jithin

When you run a program, variables act as a way of passing information from shell to programs.  At first, a program will look at the particular variables in their environment and if it is found it will use the value stored. Some of the variables are set by the system, others by our self, others by the shell, or any program that loads another programs. Standard UNIX variables are classified into two. 1) Environment variables 2) Shell variables A specific environment is needed to run e   [...]

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