Short tip: unpack manpages under HP-UX and RHEL

Especially on new installed systems it is possible  that the manpage database wasn't initialized, yet. You can identify this if whatis / man -k doesn't "find anything":

1# man -k man
2man: nothing appropriate

Under HP-UX the index is created using the following command:

1# catman -m

Under RHEL there is a tool named makewhatis which completes ideally without any feedback:

1# makewhatis

Tada - searching in the mapages is working by know:

1# man -k man
2...long long output