Bash Scripting – Case Statement

#90 Days DevOps Challenge#Zero To Hero#Day11 💻 Challenge Accepted with #tws by Shubham Londhe 👨‍🏫

Case statement in bash scripts is used when a decision has to be made against multiple choices. In other words, it is useful when an expression has the possibility to have multiple values.

Syntax:

case EXPRESSION in
  Pattern_Case_1)
   STATEMENTS
   ;;
 Pattern_Case_1)
   STATEMENTS
   ;;
 Pattern_Case_N)
   STATEMENTS
   ;;
 *)
   STATEMENTS
   ;;
esac

Output a Description for Each Option

• The first line in the script starts with the shebang (#!).

• It instructs the operating system to use a particular interpreter to parse the script.

• We have initialized a PROFILE variable as “DevOps”.

• Now, we are using a case statement.

• Each expression has been handled through the case statement.

• The last line, esac, has been used to terminate the case statement.