BustinBash/BustinBash — pull request #41 by dahal (2014-08-20 02:29:56+00:00)
Title: Dir/functionality

Complete all Lessons functionality

```
~> pwd
~> ls
~> cd usa
~> cd ..
~> cd usa/ca/san_francisco
~> touch the_bay.txt
~> rm the_bay.txt
~> cd ..
~> mkdir marin
~> rmdir marin
~> echo Bustin Bash
```