It's easy to get on the fly syntax checking in Emacs (aka
linting). You just two things: shellcheck and flycheck-mode.
The former is a shell command which on Debian based systems can be installed with:
# apt-get install shellcheck
The other thing you need is the Emacs plugin flycheck which can be
installed in Emacs with:
M-x package-install RET flycheck
Now, you're almost all set, you just need to enable flycheck in all
your shell script buffers. Adding this to your ~/.emacs should do
it:
(add-hook 'sh-mode-hook 'flycheck-mode)
This should help catch loads of BASH errors and subtle bugs before even trying to run your BASH programs.
Happy hacking!
