A former coworker would go into the bin directory and read through every command at least once a year, if I remember the exacts correctly. He was also the best

A former coworker would go into the bin directory and read through every command at least once a year, if I remember the exacts correctly. He was also the best system admin I remember ever seeing. I believe I have 80% of the java spec read by the same strategy from when I was a full time java programmer.