****cd****= change directory

****cp****= copy

****ls****= list what is in the directory

****ls -l****= list what is in directory with more detail

****mkdir****= make new directory

****chown****= change owner

****chown -R****= change owner of everything in specified directory

****su****= switch user

****chgrp****= change group ownership

****chgrp -R****= change group ownership of everything in specified directory