/media/sda-magnetic/david/david2/david2/bash/2022-09-22/var.sh

#!/bin/bash 

var1="Hallo"
var2="Hallo Welt"

echo "$var1"
echo "$var2"

unset var1 
unset var2

hallololo="Hallo Welt"
hallo="Hallo" 

echo "${hallo}lolo"