fpm/examples/jruby/README.md

Usage:

make package

Should make the package. Try installing:

sudo dpkg -i jruby-1.6.0.RC2-1.all.deb

Now try it:

% /opt/jruby/bin/jirb
>> require "java"
=> true
>> java.lang.System.out.println("Hello")
Hello
=> nil