In my environment, I have bash autocomplete set up to do lots of amazing things. However, when I'm editing a shell script in emacs, all of that autocomplete magic goes away.
Is there any way to get emacs to do bash command line autocompletion when I'm editing shell scripts?
I would accept an answer that requires me to use a different editor, if that editor were available on Linux systems. I would also accept an answer that tells me that I need to use a different shell's autocomplete.
bash-completion.el provides an interface to normal bash completion, which can also be extended to work in normal sh-modes with an addition to your completion-at-point-functions. Here is how that could work, just using the command sh-beginning-of-command from sh-script to determine the current completion candidate (this could be extended to handle more complicated shell commands if necessary).
(require 'sh-script) ;sh-beginning-of-command
(require 'bash-completion)
(defun my-sh-completion-at-point ()
(let ((end (point))
(beg (save-excursion (sh-beginning-of-command))))
(when (and beg (> end beg))
(bash-completion-dynamic-complete-nocomint beg end t))))
(defun my-sh-hook ()
(add-hook 'completion-at-point-functions #'my-sh-completion-at-point nil t))
(add-hook 'sh-mode-hook #'my-sh-hook)
(setq tab-always-indent 'complete) (which I would do), then TAB will try to indent first, and if the line is already indented it will do completion. With this setting I peronally never use M-TAB, but see options for tab-always-indent