commandline session $cat var Name=Jeffrin Age=36 $echo $Name $. var $echo $Name Jeffrin $echo $Age 36 $./var bash: ./var: Permission denied $chmod 744 var $./var $echo $Age 36 $bash $echo $Name $./var $echo $Name $. var $echo $Name Jeffrin $ls -l var -rwxr–r– 1 jeffrin jeffrin 20 Apr 10 00:41 var $