Login: mhd                              Name: Michael Dingler
Directory: /home/mhd                   Shell: /bin/plan.cat
Last login Wed Nov 17 11:30:10 2021 UTC
No Mail.
Plan:
I read Carmack's Files back in the days, but I don't think I ever wrote a .plan 
myself...

Let's see if this works on the command line. Apparently it does.