list directory contents

-l     (The  letter  ell.) Do not follow symbolic links named as operands unless the -H or -L options are
       specified. Write out in long format (see the STDOUT section). When -l (ell) is specified, -1 (one)
       shall be assumed.

-n     The  same  as  -l,  except  that the owner's UID and GID numbers shall be written, rather than the
       associated character strings.