Install Homebrew

Install Homebrew, this missing package manager for macOS (OSX).

It gives you easy and maintainable access to cool tools like:

ack
colortail
diff-so-fancy
fmdiff
httpie
irssi
jq
libxml2
liquidprompt
multitail
node
openssl
pandoc
rbenv
sqlite
tmux
tmuxinator-completion
tree
wget

References

http://brew.sh/