1 files changed, 5 insertions, 8 deletions

diff --git a/lisp/simple.el b/lisp/simple.el
index e3e6a7cebe1..a0ae2f3eeaa 100644
--- a/lisp/simple.el
+++ b/lisp/simple.el
@@ -630,9 +630,6 @@ then call `undo-more' one or more times to undo them."
       (error "No further undo information"))
   (setq pending-undo-list (primitive-undo count pending-undo-list)))
 
-(defvar last-shell-command "")
-(defvar last-shell-command-on-region "")
-
 (defvar shell-command-history nil
   "History list for some commands that read shell commands.")
 
@@ -643,8 +640,9 @@ If COMMAND ends in ampersand, execute it asynchronously.
 Optional second arg non-nil (prefix arg, if interactive)
 means insert output in current buffer after point (leave mark after it).
 This cannot be done asynchronously."
-  (interactive (list (read-string "Shell command: " last-shell-command)
-                     current-prefix-arg nil nil 'shell-command-history))
+  (interactive (list (read-from-minibuffer "Shell command: "
+                                           nil nil nil 'shell-command-history)
+                     current-prefix-arg))
   (if flag
       (progn (barf-if-buffer-read-only)
              (push-mark)
@@ -738,9 +736,8 @@ even though that buffer is not automatically displayed.  If there is no output
 or output is inserted in the current buffer then `*Shell Command Output*' is
 deleted." 
   (interactive (list (region-beginning) (region-end)
-                     (read-string "Shell command on region: "
-                                  last-shell-command-on-region
-                                  nil nil 'shell-command-history)
+                     (read-from-minibuffer "Shell command on region: "
+                                           nil nil nil 'shell-command-history)
                      current-prefix-arg
                      (prefix-numeric-value current-prefix-arg)))
   (if flag