Re: "it's a Unix system, I know this"
"nd I find it odd that you haven't included Jurassic Park.
"it's a Unix system, I know this""
As a post a couple up from yours pointed out, that line is completely accurate. It's IRIX (which is a UNIX), and that tool (fsn) was actually on IRIX installs.
https://www.youtube.com/watch?v=zaRHU1XxMJQ