While Unix-like operating systems have captured my imagination, the first computer I owned ran MS-DOS. While these systems are widely considered different, MS-DOS helped me develop command-line habits ...

Your PC has more options than the usual household names.

If you use Windows today and type ls, cat, grep, or awk in a terminal, there is a good chance something useful will happen. That was not always true. For most of the history of personal computing, ...