Installation blues

I'm trying to install FreeBSD on an ancient (used to run Win 95) laptop my aunty gave me a long time ago. Got stuck early in the process at a command prompt. Engineer friend told me to type "man ls" ("man" being short for "manual", which brings up help documentation or some sort like that.). So...

OK man ls
man not found

Awesome. A way to make a computer sound like a female college freshman.