#!/bin/bash

# Do different things depending on input from first argument when script was called.
case $1 in
    "Value" ) # If $1 = "Value"
        echo "First case" ;;
    [a-z] ) # If $1 = any value from a to z
        echo "Second case" ;;
    [1-9] ) # If $1 = any value from 1 to 9
        echo "Third case" ;;
    Value_* ) # If $1 = Value_<anything>
        echo "Fourth case" ;;
    ? ) # If $1 = Any single character
        echo "Fifth case" ;;
    * ) # Default case
        echo "Sixth case" ;;
esac