01-Conditional-Logic.md

Conditional Logic

• Lets Understand Conditional-Logic

  Create and Launch Rocket

  • To Check the status of the rocket use below command:

    $ rocket-status lunar-mission
    

  • To debug the status of the rocket.

    $ rocket-debug lunar-mission
    

  

  Conditional Statement

  • if is defined as

    if [ $rocket_status = "failed" ]
    then
      rocket-debug $mission_name
    fi 
    

    

  • elif condition is defined as

    if [ $rocket_status = "failed" ]
    then
      rocket-debug $mission_name
    elif [ $rocket_status = "success" ]
    then
      echo "This is successful"
    fi 
    

    

  • else is written as

    if [ -d "/home/bob/caleston" ]
    then
      echo "Directory exists"
    else
      echo "Directory not found"
    

    

  Conditional Operators

  • Comparing statement can be used as:

    

  • Conditional Operators that works in bash

    

  • AND and OR Operators

    

  • Conditional operation description