Use the DIRECTORY command to list the files and associated
    information in remote directories. For example, the following
    command lists the files in the default directory on a remote
    UNIX host (assuming the user already has connected to the remote
    host):
    FTP> DIRECTORY
    200 PORT command successful
    150 Opening ASCII mode data connection for /bin/ls (130.180.4.8,1312)
    total 6303
    -rw-rw-r--   1 milgrom  users          1 Jan  9  2002 #UNTITLED#
    -rw-------   1 milgrom  users          4 Apr 11  2002 .Xauthority
    -rwxr-xr-x   1 milgrom  users       1499 Feb  3  2002 .cshrc
    drwxr-xr-x  11 milgrom  users       8192 Jan  9  2002 .dt
    -rwxr-xr-x   1 milgrom  users       3970 Dec 13  2002 .dtprofile)