Quick install

Most of the instalation instructions that dangle the web just make you sudo gem install, I don’t like that, so here’s the quick reference for when I need to do this next time:

sudo apt install ruby-dev
export GEM_HOME=$HOME/gems
gem install travis -v 1.7.4 --no-rdoc --no-ri

And this goes into ~/.bashrc:

export GEM_HOME=$HOME/gems
export PATH=$PATH:$GEM_HOME/bin