after/ftplugin/sh.vim

Enforce vim script implementation to reduce ambiguities and improve robustness:

scriptversion 4

Add on-hover command definitions:

if has('gui_running')
    command! -buffer CommandBalloon
    \   setlocal balloonexpr=display#command_balloon('whatis')
endif
Example of shell script balloon help

See also

Note

This isn’t set as the global default as ale provides a nice general balloon interface. However, when dipping in to a shell script on an unusual system this can be useful.