FTP> ENABLE LOG
  Bell off.
  Debugging on (debug=1).
  FTP> ENABLE REPLY
  Reply on.
  Verbose mode on.
  FTP> PUT PRICES.TXT YEAR.PRICES
  ---> PORT 1,2,3,4,7,138
  200 PORT command successful.
  ---> STOR PRICES.TXT
  150 Opening ASCII mode data connection for small.txt (1,2,3,4,7,138).
  226 Transfer complete.
  local: WORK1$:[samson]prices.txt;1  remote: year.prices
  609 bytes sent in 00:00:00.02 seconds (179.36 Kbytes/s)
  FTP> GET LAKE.IBIS LAKE_IBIS.DAT
  ---> PORT 1,2,3,4,7,138
  200 PORT command successful
  ---> RETR lake.ibis
  150 Opening ASCII mode data connection for lake.ibis (1.2.3.4,193)
  226 Transfer complete
  local: LAKE_IBIS.DAT remote:lake.ibis
  4 bytes received in 00:00:00.03 seconds (0.13 Kbytes/s)
  FTP>

      Turns on the display of commands sent to the remote host. Shows
      all the commands sent to the remote host during the execution
      of PUT and GET.