Administration Rob Jenson points out that, since manpages are not searchable by default on many systems, you should generate the info for apropos/whatis. This is done with either catman -w or makewhatis, depending on your system. Check the manpages for details. On my Linux box, at least, this is done via /usr/sbin/makewhatis, and is documented only on the whatis and apropos manpages.