Tag Archives: linux

Installing java and browser plugin

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I’ve spend some time today trying to figure out how to enable the chromium browser to run the latest version of sun..erh, oracle java. Apparently chromium reads the .mozilla/plugins folder… This i how I got things to work

Installing java

Download a java 7 without an installer from java.com. Untar this in /usr/local

# cd /usr/local
# sudo tar xzf ~/Downloads/jre-7u13-linux-x64.tar.gz

And update alternatives:

# sudo update-alternatives --install /usr/bin/java "java" /usr/local/jre1.7.0_13/bin/java 1062
# update-alternatives --config java

Install the Firefox Plugin

# mkdir -vp ~/.mozilla/plugins

32-Bit version:

# ln -s /usr/local/jre1.7.0_13/lib/i386/libnpjp2.so ~/.mozilla/plugins/

64-Bit version:

# n -s /usr/local/jre1.7.0_13/lib/amd64/libnpjp2.so ~/.mozilla/plugins/

…

Installing cucumber and jruby

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Yet another note for myself…

At work I run Linux Mint 12 on my workstation and needed to install cucumber on top of jruby. The reason for choosing jruby is another story.

At first I tried to do with the pre-build packages for Mint, but did not have any luck. Then Frank told me to use rvm (Ruby Version Manager), and that was a good advice. It took me less than 10 minutes to get up and running. This was what I did:

To install rvm (Ruby Version Manager):

# curl -L https://get.rvm.io | bash -s stable --ruby

The installation adds this line to .bash_login:

# [[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"

On my system, bash only reads .bashrc on login – not .bash_login – so I had to choose one of the following solutions. Since my .bash_login originally was empty, thus only had the stuff that rvm added, and I since I’m a lazy bastard I did this.

# echo ~/.bash_login >> ~/.bashrc

Which is basically the same as:

# echo '[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"' >> ~/.bashrc

But I guess you just as well can include .bash_profile in .bash_rc like this

# echo 'source ~/.bash_login' >> ~/.bashrc

Now you can install jruby using rvm:

# rvm install jruby

Set jruby to be the active ruby

# rvm use jruby

Now Install cucumber using jruby’s gem

# gem install cucumber

And I was ready to go…

Upgrading Groovy

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This post is mainly a note to my self. At work I use a Linux Mint distro, but the bundled version of groovy is 1.7.10 and I needed some stuff only present in 2.0.0, thus I had to upgrade. I’m not that into linux (or any other OS for that matter), so it took me a while to figure out how. Then my computer crashed and I had to do it over, but I had not made any notes during my previous attempt. Luckily Google was my friend and I was able to find out quite quickly. This will be my notes now:

First download groovy 2.0.0 from http://groovy.codehaus.org/Download

Then, in a command prompt, execute the following

# cd /usr/lib/
# sudo unzip /groovy-binary-2.0.0.zip

# sudo update-alternatives --install "/usr/bin/groovy" "groovy" "/usr/lib/groovy-2.0.0/bin/groovy" 1
# sudo update-alternatives --install "/usr/bin/groovyc" "groovyc" "/usr/lib/groovy-2.0.0/bin/groovyc" 1
# sudo update-alternatives --install "/usr/bin/groovyConsole" "groovyConsole" "/usr/lib/groovy-2.0.0/bin/groovyConsole" 1
# sudo update-alternatives --install "/usr/bin/groovysh" "groovysh" "/usr/lib/groovy-2.0.0/bin/groovysh" 1
# sudo update-alternatives --install "/usr/bin/java2groovy" "java2groovy" "/usr/lib/groovy-2.0.0/bin/java2groovy" 1

# sudo update-alternatives --config groovy

Test that everything went well

# groovy -v
Groovy Version: 2.0.0 JVM: 1.6.0_26 Vendor: Sun Microsystems Inc. OS: Linux

(use google for details about “sudo” and “update-alternatives”)