CTRL-X + D - compare directories or files;
TAB or Ctrl-U is switching focus between left and right panel;
Alt-T or Esc-T Change the panel display options in round-robit fashion. This way you can switch from a dual panel display to a single panel display;
Ctrl-s Search for a file in the panel;
Alt-s or Esc-s incremental search;
Use up-arrow, down-arrow, page-up, page-down, home and end keys to browse the directory content.
Ctrl-R will refresh active panel;
Ctrl-X C opens chmod dialog for marked file;
Ctrl-X O opens chown dialog for marked file;
Alt-? opens search dialog;
Ctrl-X A Open VFS list. If a ftp session times out, you can use this to free the open vfs so you can log in again;
Insert or Ctrl-T marks or removes mark on file(s);
Alt-G marks first file or directory in active panel;
Alt-R marks middle file or directory in active panel;
Alt-J marks last file or directory in active panel;
Ctrl-/ Look for filename given in last line of active panel (not whole screen), and jumps on first file;
** * ** marks removes marking for all files in active panel (not directories)
Shift+ Shift- brings up the input box where it can be given regular expression. All files with names that fill condition(s) in regular expression will be marked.
** (Backslash) remove marking for more data (opposite to "+");
Alt-Enter or Esc-Enter copies selected filename in command line;
Ctrl-x p Copies the current directory to the command line
Ctrl-x t Copies/pastes the currently selected filename(s) to the cl. Useful for using svn commands w/multiple files
??? Ctrl-Shift-Enter copies full path of selected file in the command line
Esc-H and Alt-H shows command line history (Alt-H is used by Teraterm);
Alt-Enter copy the currently selected file name to the command line;
C-Enter same a Alt-Enter. May not work on remote systems and some terminals;
C-Shift-Enter copy the full path name of the currently selected file to the command line. May not work on remote systems and some terminals;
Alt-Tab does the filename, command, variable, username and hostname completion for you;
C-x t, C-x C-t copy the tagged files (or if there are no tagged files, the selected file) of the current panel (C-x t) or of the other panel (C-x C-t) to the command line;
C-x p, C-x C-p the first key sequence copies the current path name to the command line, and the second one copies the unselected panel's path name to the command line;
C-q the quote command can be used to insert characters that are otherwise interpreted by the Midnight Commander (like the '+' symbol);
Alt-p, Alt-n use these keys to browse through the command history. Alt-p takes you to the last entry, Alt-n takes you to the next one;
Alt-h displays the history for the current input line.