use a function bash code example

Example 1: bash function

function hello {
	echo Hello
}
hello
function e {
	echo $1  # $1 is the first argument
}
e Hello

Example 2: bash function

#!/bin/bash 
                
                #Call a function without arguments
                function quit {
                   exit
                }
                
                #Call a function with arguments
                function e {
                    echo $1 #$1 will be set to the first argument given
                }