Variable: shell-popd-regexp
shell-popd-regexp is a customizable variable defined in shell.el.gz.
Value
"popd"
Documentation
Regexp to match subshell commands equivalent to popd.
Probably introduced at or before Emacs version 17.
Source Code
;; Defined in /usr/src/emacs/lisp/shell.el.gz
(defcustom shell-popd-regexp "popd"
"Regexp to match subshell commands equivalent to popd."
:type 'regexp
:group 'shell-directories)