commandline session
$echo 'hello' hello $echo "hello" hello $echo 'ls' ls $echo `ls` $echo `ls -l` total 0 $echo 'ls -l' ls -l $
BEAUTY AND PLAY
$echo 'hello' hello $echo "hello" hello $echo 'ls' ls $echo `ls` $echo `ls -l` total 0 $echo 'ls -l' ls -l $