Aliases are nothing more than keyboard shortcuts or abbreviations, and although they’re a bit limited, they’re great for simple commands. Edit the nano ~/.bash_profile file and add your alias, save and restart and boom, shortcuts!

Projects Folder

alias code="cd /Users/jameswilliams/documents/repos"

Symbolic links for applications.

Use applications more easily from the command line.

Sourcetree

ln -s /Applications/SourceTree.app/Contents/Resources/stree /usr/local/bin/

Sublime Text

ln -s "/Applications/Sublime Text.app/Contents/SharedSupport/bin/subl" /usr/local/bin/subl