Intelligent Navigation With ctags

You can download a cheat sheet and install instructions for all of the tools shown in this video. Transcript ctags is an external program that scans through your codebase, producing an index of keywords. Vim has built-in ctags integration, which...
This is a companion discussion topic for the original entry at https://thoughtbot.com/upcase/videos/intelligent-navigation-with-ctags

Great video. In this and the previous video you use vim functions:
:Path
:TagFiles
Could you provide the source for those?

Thank you so much for these great videos!