I use C-h f heavily, but this is all functions in Emacs. I'm often only interested in interactive functions, i.e. commands.
Is there an equivalent for commands? Ideally I'd like ido completion too.
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help-fns+.el defines command
And it redefines
describe-function so that it does
describe-command if you give it a prefix arg.
The library binds
C-h c (
describe-key-briefly is moved to
The same library defines other help commands, such as
describe-option-of-type. Here is more info about the library.
apropos-command might be sufficiently close.
It doesn’t offer
describe-function’s tab completion, but it lets you
search only through commands, and it takes you
to their doc page.
I can't find this built-in. It is fairly easy to make a wrapper around
describe-function that only completes command names when called interactively. In the implementation below, I duplicated the interactive form from
describe-function and changed the
fboundp test to
commandp. As an added bonus, this function offers all function names when called with a prefix argument. Change
if current-prefix-arg to
if (not current-prefix-arg) to make describing all functions the default.
(defun describe-command (function &optional all-functions) "Display the full documentation of FUNCTION (a symbol). When called interactively with a prefix argument, prompt for all functions, not just interactive commands, like `describe-function'." (interactive (if current-prefix-arg (eval (car (cdr (interactive-form 'describe-function)))) (list (let ((fn (function-called-at-point)) (enable-recursive-minibuffers t) val) (setq val (completing-read (if (and fn (commandp fn)) (format "Describe command (default %s): " fn) "Describe command: ") obarray 'commandp t nil nil (and fn (commandp fn) (symbol-name fn)))) (if (equal val "") fn (intern val))) current-prefix-arg))) (describe-function function))
I haven't tested this with ido but it should integrate normally.