how to exit immediately with getopts option in bash script

 In a Bash script that uses `getopts` for option parsing, you can exit immediately by using the `exit` command when an option is encountered that should trigger an immediate exit. Here's an example:


```bash

while getopts "abc:" opt; do

  case $opt in

    a)

      # Process option 'a'

      ;;

    b)

      # Process option 'b'

      ;;

    c)

      # Process option 'c' with an argument

      arg="$OPTARG"

      ;;

    \?)

      # Invalid option

      echo "Invalid option: -$OPTARG" >&2

      exit 1

      ;;

  esac

done


# You can add additional logic here as needed


# For example, if option 'b' was given, exit immediately

if [ "$b_option_used" ]; then

  exit 0

fi


# Rest of your script

```


In this example, if you encounter a condition that should trigger an immediate exit, you can use the `exit` command to exit the script with a specific exit code. Be sure to set the exit code accordingly (e.g., `exit 0` for a successful exit or another value for an error exit).


Remember to adapt this example to your specific script and the conditions under which you want to exit immediately.

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