Difference between revisions of "Scala At Home"
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The steps needed to install Scala on Ubuntu are slightly complicated, as you need the latest version of Scala (not the one that comes with Ubuntu). If you have already installed Scala, the instructions below will remove them and install the correct versions for you. | The steps needed to install Scala on Ubuntu are slightly complicated, as you need the latest version of Scala (not the one that comes with Ubuntu). If you have already installed Scala, the instructions below will remove them and install the correct versions for you. | ||
| + | |||
| + | It would be a <strong>very good idea</strong> to print these instructions out or have them open on your phone before you start, as you won't always be able to see them on the screen... | ||
This is what you should do: | This is what you should do: | ||
| Line 9: | Line 11: | ||
$ chmod +x install-scala.sh | $ chmod +x install-scala.sh | ||
</nowiki> | </nowiki> | ||
| + | |||
| + | * <strong>IMPORTANT</strong> Now move to a text terminal. Press <code>Ctrl+Alt+F4</code> and log in. (If at any point you need to move back to your normal desktop press <code>Ctrl+Alt+F7</code>). | ||
| + | * <code>cd</code> to wherever you stored <code>install-scala.sh</code> | ||
* Run the script like this (you will be asked to enter your password): | * Run the script like this (you will be asked to enter your password): | ||
<nowiki> | <nowiki> | ||
| Line 24: | Line 29: | ||
</nowiki> | </nowiki> | ||
* You should now have Scala version 2.9.1 correctly installed. | * You should now have Scala version 2.9.1 correctly installed. | ||
| + | |||
| + | * Move back to your normal desktop by pressing <code>Ctrl+Alt+F7</code>. | ||
| Line 40: | Line 47: | ||
echo | echo | ||
| − | + | sudo 'apt-get -y --quiet remove scala' | |
echo | echo | ||
| Line 46: | Line 53: | ||
echo | echo | ||
| − | + | # Maverick partner, since oneiric doesn't have Oracle / Sun Java yet. | |
| − | + | sudo "apt-add-repository 'deb http://archive.canonical.com/ubuntu maverick partner'" | |
| − | + | sudo 'apt-get update' | |
| − | + | sudo 'apt-get install eclipse sun-java6-jdk' | |
| − | + | sudo 'update-java-alternatives -s java-6-sun' | |
| + | sudo 'update-javac-alternatives -s javac-6-sun' | ||
| + | sudo 'update-javap-alternatives -s javap-6-sun' | ||
echo | echo | ||
| Line 64: | Line 73: | ||
echo | echo | ||
| − | + | sudo 'mv scala-2.9.1.final /opt' | |
| − | + | sudo 'ln -s /opt/scala-2.9.1.final/ /opt/scala' | |
echo | echo | ||
Latest revision as of 11:45, 27 February 2012
The steps needed to install Scala on Ubuntu are slightly complicated, as you need the latest version of Scala (not the one that comes with Ubuntu). If you have already installed Scala, the instructions below will remove them and install the correct versions for you.
It would be a very good idea to print these instructions out or have them open on your phone before you start, as you won't always be able to see them on the screen...
This is what you should do:
- Copy the BASH script below into a file called
install-scala.sh - Open a command line.
cdto wherever you storedinstall-scala.sh - Make the script executable by executing the following command on the shell (remember you don't type in the
$, that's the shell prompt!):
$ chmod +x install-scala.sh
- IMPORTANT Now move to a text terminal. Press
Ctrl+Alt+F4and log in. (If at any point you need to move back to your normal desktop pressCtrl+Alt+F7). cdto wherever you storedinstall-scala.sh- Run the script like this (you will be asked to enter your password):
$ ./install-scala.sh
- Check that Scala was installed properly, like this:
$ source ~/.bashrc $ scala Welcome to Scala version 2.9.1.final (Java HotSpot(TM) Server VM, Java 1.6.0_22). Type in expressions to have them evaluated. Type :help for more information. scala> // Press Ctrl+d to get out of this interpreter
- You should now have Scala version 2.9.1 correctly installed.
- Move back to your normal desktop by pressing
Ctrl+Alt+F7.
install-scala.sh script
#!/bin/bash # # This script install Scala v1.9.1 on Ubuntu. # (c) Sarah Mount 2012 # echo echo Getting ready... echo sudo 'apt-get -y --quiet remove scala' echo echo Installing the Sun version of Java and making it default... echo # Maverick partner, since oneiric doesn't have Oracle / Sun Java yet. sudo "apt-add-repository 'deb http://archive.canonical.com/ubuntu maverick partner'" sudo 'apt-get update' sudo 'apt-get install eclipse sun-java6-jdk' sudo 'update-java-alternatives -s java-6-sun' sudo 'update-javac-alternatives -s javac-6-sun' sudo 'update-javap-alternatives -s javap-6-sun' echo echo Downloading Scala... echo cd /tmp wget http://www.scala-lang.org/downloads/distrib/files/scala-2.9.1.final.tgz tar xvzf scala-2.9.1.final.tgz echo echo Installing Scala... echo sudo 'mv scala-2.9.1.final /opt' sudo 'ln -s /opt/scala-2.9.1.final/ /opt/scala' echo echo Setting environment variables... echo echo "export SCALA_HOME=/opt/scala-2.9.1.final" >> ~/.bashrc echo "export PATH=$PATH:/opt/scala-2.9.1.final/bin" >> ~/.bashrc source ~/.bashrc
