The variables in bash are scalar. From Bash 2.0 it supports Array variables i.e., it can handle multiple values at the same time. All the naming rules of Shell variables [ … ]

In ksh and bash, the shell enable integer arithmetic to be to be performed.This avoids having to run an extra program such as expr or bc to do math in a shell script [ … ]

The Bourne shell can redirect a command’s standard output back to the shell’s own command line i.e., the command’s output can be used as an argument to another command, or [ … ]

There are certain limitations when the name of the variable is defined The name of the variable can contain letters(a to z and A to Z) It can have numbers [ … ]

A variable in shell script  is it is the means of referencing a numeric or character value. And unlike formal programming languages, a shell script does not require to declare [ … ]

The built-in echo command is an older form of printf command. Bash provides it for compatibility with almost all the shells. echo does not use a format string format like printf command It [ … ]

The easy way to run shell script in Linux or UNIX is to type the following commands. In the terminal type the following commands. $ sh myscript.sh OR $  bash [ … ]

We should be aware of the fact that we might not be the only person reading our code. A lot  of users and system administrators run script that were written [ … ]

The #! Syntax used in scripts to indicate an interpreter for execution under UNIX/Linux operating systems. Most Linux shell and Perl/Python script starts with the following line. #!/bin/bashOR#!/usr/bin/perlOR#!/usr/bin/python It is [ … ]

Each and every content in Unix/Linux is a file and it supports a several different types of files. To determine the file type, specify the -/ optional to the /s command. [ … ]