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diff --git a/how_to_get_the_programming_languages_running_on_your_computer.mdwn b/how_to_get_the_programming_languages_running_on_your_computer.mdwn
index 063957a5..0bfcef28 100644
--- a/how_to_get_the_programming_languages_running_on_your_computer.mdwn
+++ b/how_to_get_the_programming_languages_running_on_your_computer.mdwn
@@ -82,9 +82,9 @@ another Scheme implementation, though, there's no compelling reason to switch.)
Since the name change is so recent, you're likely to run across both sets of names.
-PLT Scheme had three salient components: the command-line version "mzscheme", a
-GUI extension "MrEd", and a teaching-friendly editor/front-end "DrScheme". In
-Racket these have been renamed "racket", "gracket", and "DrRacket",
+PLT Scheme had several components. The two most visible components for us
+were the command-line interpreter "mzscheme" and a teaching-friendly editor/front-end "DrScheme". In
+Racket these have been renamed "racket" and "DrRacket",
respectively.
@@ -108,6 +108,14 @@ respectively.
If you want the GUI components, I think you'll need to use the
"Mac/without MacPorts" installation options above.
+ I recommend also typing:
+
+ sudo port install rlwrap
+
+ then if you ever use the command-line program `mzscheme` (or `racket`), you should start it by typing `rlwrap mzscheme`. This gives
+ you a nice history of the commands you've already typed, which you can scroll up and down in with your
+ keyboard arrows.
+
* **To install on Linux**
Use your packaging system, for example, open a Terminal and
@@ -116,10 +124,18 @@ respectively.
sudo apt-get install plt-scheme
It's very likely that your packaging system has some version of
- PLT Scheme available, so look for it. However, if you can't find it you
+ PLT Scheme (or Racket) available, so look for it. However, if you can't find it you
can also install a pre-packaged binary from the Racket website at .
Choose the option for your version of Linux (Ubuntu, Debian, and two
- varieties of Fedora are available)
+ varieties of Fedora are available).
+
+ As above, I recommend you also type:
+
+ sudo apt-get rlwrap
+
+ then if you ever use the command-line program `mzscheme` (or `racket`), you should start it by typing `rlwrap mzscheme`. This gives
+ you a nice history of the commands you've already typed, which you can scroll up and down in with your
+ keyboard arrows.
## Getting OCaml ##
@@ -182,6 +198,13 @@ However, if you're not able to get that working, don't worry about it much.
sudo port install ocaml caml-findlib
+ As with Scheme, it's helpful to also have rlwrap installed, and to start OCaml as `rlwrap ocaml`. This gives
+ you a nice history of the commands you've already typed, which you can scroll up and down in with your
+ keyboard arrows.
+
+
+* [More details about installing OCaml on Macs, if needed](http://cocan.org/getting_started_with_ocaml_on_mac_os_x)
+
* **To install on Linux**
Use your packaging system, for example, open a Terminal and
@@ -205,3 +228,7 @@ However, if you're not able to get that working, don't worry about it much.
Here are the INSTALL notes:
.
+ As with Scheme, it's helpful to also have rlwrap installed, and to start OCaml as `rlwrap ocaml`. This gives
+ you a nice history of the commands you've already typed, which you can scroll up and down in with your
+ keyboard arrows.
+