Re: TAB in M-x shell needs assistance to show choices

[Richard Stallman]

    I do M-x shell and TAB (comint-dynamic-complete) needs help to get it
    to show choices:
    ESC x s h e l l RET l s SPC TAB TAB TAB TAB TAB TAB . / TAB

It would be reasonable to make this work like TAB in Bash
in the same circumstances.  That seems to do nothing when typed
the first time, and display a list of all completions when
typed a second time consecutively.  I'm not going to work on this
myself, but I wouldn't be opposed if someone wants to do it.