Task: Basic Linux Shell Scripting for DevOps Engineers.

1. Explain in your own words and examples, what is Shell Scripting for DevOps.

   Shell scripting is just like a program or code which performs a certain task and helps to automate a particular task.

2. What is #!/bin/bash? can we write #!/bin/sh as well?

   #/bin/bash is a shebang line used in shell scripting files to set bash, present in the '/bin' directory, as the default shell for executing commands present in the file.

3. Write a Shell Script that prints I will complete #90DaysOofDevOps challenge

    #!/bin/bash 
    echo "I will complete #90DaysOofDevOps challenge"
   

   Steps to execute the above file:

   1. chmod 700 file_name.sh

   2. ./file_name.sh

4. Write a Shell Script to take user input, input from arguments and print the variables.

    #!/bin/bash
    NAME=$1
    echo $NAME
   

5. Write an Example of If else in Shell Scripting by comparing 2 numbers

    #!/bin/bash
   
    if [[ 2 -gt 10 ]]
    then
      echo "The variable is greater than 10."
    else
      echo "The variable is equal or less than 10."
    fi