How do I delete the newline from a process output?

Question

I call git get the toplevel dir (according to Is there a way to get the git root directory in one command? ).

(let ((tmpbuffer (get-buffer-create (make-temp-         


        

Answer 1

Assuming it is stored in a variable output-string, the final newline at the end can be removed this way:

(substring output-string 0 -1)

With the shell-command way, it would look like this:

(substring
  (shell-command-to-string "git rev-parse --show-toplevel")
  0 -1)