/media/sda-magnetic/david/david2/david2/Dokumente/informatik/linux/bash/0005/variable.sh

#!/bin/bash 

var1=Hallo
var2="Hallo Welt"

echo "$var1"
echo "$var2"

unset var1
unset var2 

hallololo="Hallo Welt"
hallo="Hallo "

echo "${hallo}lolo"