prompts you to press a key, and reports on the status bar
the key code
ne associates with that key, the
command currently associated with that key code, as well as the
input class for that key code. Input class codes are: ALPHA, COMMAND,
RETURN, TAB, IGNORE, and INVALID. This can be useful while
configuring your ~/.ne/.keys file.
If the optional integer k (between 0 and 511) is given,
uses k as the key code and displays the information described above.