In the world of Unix, there is—quite happily for everyone—just one type of document: plain text.
It makes sense that any Unix quest should begin with acquisition of skills for editing text. While graphical text editors (of which there is an entire slew) make very good scratchpads when X is around, expertise with console-mode text editing is what gives you the ability to ease into Unix.
This is such an important aspect that I opine that one should acquire text editing skills first and any Unix-specific skills later—not the other way round. It does not help if you are working with an ...
