Interview Questions on Shell Script

1. What is Shell Script?

A shell script is a program file that runs unix commands based on the conditions for a UNIX-based operating system.

2. What are the types of shell?

Two main types of shells:
The Bourne shell :-  If you are using a Bourne-type shell, the default prompt is the $ character.
The C shell :- If you are using a C-type shell, the default prompt is the % character.

3. Write sample program in shell script?

#!/bin/bash
clear 
echo  “Hello World"

4. How to write comments in shell script?

Start with # and then write comment lines.
Ex :- 
# Commnets goes here

5. What is the extension of shell script?

Generally we use .sh extension for shell sctipt.