You what's frustrating? Having two terminal windows open. The one on the left with containing a man page for some command with a truck load of switches; on the right attempting to use said command with some of those switches. And getting syntax errors. "Yes it does" I say. Pointing very specifically at the line of the man page. And realize the man page is from my BSD based Mac, and the command line actually is executing on the Debian based Linux box. ugh.