|   |   |   |  Introducing bash
   1. The shell
   2. Are you running bash?
   3. About bash
   4. Using "cd"
   5. Paths
   6. Absolute paths
   7. Relative paths
   8. Using ".."
   9. Using "..", continued
   10. Relative path examples
   11. Understanding "."
   12. cd and the home directory
   13. Other users' home directories
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