The document recommends using the command line interface because it looks impressive, is powerful, has historical significance, and promotes discipline. Using the command line interface allows users to perform many tasks with just one command, handle text efficiently with tools like awk, sed, and grep, and takes users back to a more procedural style of computing that requires logic and precision.

1. using the command line interface is good for you! [email_address]

2. Looks Cool Impressive Matrix effect Keyboard-driven, type furiously Looks complicated  $$$

3. Powerful One command can do a lot Regular expr = coolness Text handling: awk sed grep vi or emacs

4. Historical Old-school teletypes FORTRAN on a 14” CRT terse

5. Discipline Requires logic & precision Makes you strong (not WIMPY/OO/RAD) Back to basics - PROCEDURAL

6. Summary: cmdline = good 4 u Look cool Powerful Historical Discipline