Use your FTP Client's specific method to retrieve directory and file listings. Some GUI based FTP Clients may do this automatically after you login or change directories. For example:

ftp> dir
200 PORT command ok.
125 Data connection open; transfer starting.
total 99811
drwx---rwx  2 AUSER  01234567        0 Oct 10  2001 NCAR
-rw-------  2 AUSER  01234567  5695506 Aug  7 12:51 ftptest
-rw----rw-  3 AUSER  01234567   359984 Aug  7 12:55 ftptest2
-rw----rw-  3 AUSER  01234567   215921 Aug  7 13:15 ftptest3
226 ASCII Transfer complete.