GNU Midnight Commander

GNU Midnight Commander User's Guide

http://www.chm.tu-dresden.de/edv/mc/mc4.5/manual1.html#8

M=Alt for me

M-o

If the other panel is a listing panel and you are standing on a directory in the current panel, then the other panel contents are set to the contents of the currently selected directory (like Emacs' dired C-o key) otherwise the other panel contents are set to the parent dir of the current dir.

M-z return history

M-a copy pwd to command line