COMMAND RECALL
  ^E (uparrow)         recall previous command
  ^X (downarrow)       recall subsequent command

COMMAND EDITING
  ^S (leftarrow)       move left in command line
  ^D (rightarrow)      move right in command line
  ^V                   toggle overstrike/insert mode
  ^H (BS) or DEL       delete character
  ^U                   cancel unissued command

MULTIPLE COMMANDS - Separate with semicolon (;)

TO CHANGE DISK/USER -  du:  (D=disk, U=user; either or both)

RESET DISK SYSTEM - CTRL-C

RETURN TO CP/M CCP - CTRL-Y