sh-show-indent
sh-show-indent is an interactive compiled Lisp function in `sh-script.el
'.
(sh-show-indent ARG)
Show the how the current line would be indented.
This tells you which variable, if any, controls the indentation of
this line.
If optional arg ARG is non-null (called interactively with a prefix),
a pop up window describes this variable.
If variable `sh-blink' is non-nil then momentarily go to the line
we are indenting relative to, if applicable.