#!/bin/bash
var1=A

my_function () {
	local var2=B
	var3=C
	echo "inside function: var1: $var1, var2: $var2, var3: $var3"
}

echo "before runninng function: var1: $var1, var2: $var2, var3: $var3"

my_function

echo "after running function: var1: $var1, var2: $var2, var3: $var3"