sudo aptitude install clojure

Note apt-get if you do not have aptitude installed.

Type clojure in a shell

clojure
user=>

You will have a repl in which you could ask some functions to eval.

user=> (+ 1 1)
2

• The easy way
  

  sudo aptitude install leiningen
  

  If you do not have leiningen in the packages, then you must pass by the not so hard way.

• The not so hard way
  
  • Download the script
    

    wget https://raw.github.com/technomancy/leiningen/stable/bin/lein
    

  • Place it on your $PATH
    I also like to use ~/bin.

    export PATH=~/bin/:$PATH
    

    I usually add this in the ~/.bashrc file.

  • Make it executable
    

    chmod 755 ~/bin/lein
    

  • Ask the version
    This will download all it needs.

    lein version
    

    and finally gives you an output similar to this:

    tony@dagobah(0.11,) 09:56:26 ~/org (master) $ lein version
    Leiningen 1.7.1 on Java 1.6.0_26 Java HotSpot(TM) Client VM
    

tony@dagobah(0.16,) 13:00:07 ~ $ lein repl
REPL started; server listening on localhost port 14778
user=>

For example:

user=> (+ 1 1)
2

This is a leiningen plugin to launch unit tests for the unit test framework midje.

lein plugin install lein-midje 1.0.9

Note The version [lein-midje "2.0.0-SNAPSHOT"] is leiningen 2 compatible so do not use this one.

tony@dagobah(0.09,) 13:05:45 ~ $ lein midje --version
Couldn't find project.clj, which is needed for midje

OK

• openjdk
  

  sudo aptitude install openjdk
  

• sun jdk on ubuntu 11.04
  https://github.com/ardumont/sh/blob/master/deploy-java-sun-11.04.sh

• sun jdk on ubuntu 11.10
  https://github.com/ardumont/sh/blob/master/deploy-java-sun-11.10.sh

tony@dagobah(0.32,) 13:04:16 ~ $ java -version
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
Java HotSpot(TM) Server VM (build 20.1-b02, mixed mode)

sudo aptitude install git

tony@dagobah(0.10,) 13:05:41 (129) ~ $ git version
git version 1.7.5.4