catman —
format cat pages from man pages
  
    | catman | [ -knpsw] [-mdirectory] [sections] | 
  
    | catman | [ -knpsw] [-Mdirectory] [sections] | 
catman creates formatted versions of the on-line manual
  pages from their nroff(1) source.
  Manual pages whose formatted versions are missing or out of date are
  regenerated. If manual pages are regenerated, catman
  also regenerates the whatis database.
The optional sections argument is one word,
    and contains the section numbers of all the sections to be checked. For
    example, if sections is ``13f8'', the manual pages in
    sections 1, 3f, and 8 will be checked and regenerated. If no
    sections argument is provided,
    catman will try to operate on all of the known
    manual sections.
The options are as follows:
  - -k
- Ignore errors from nroff when building manpages.
- -n
- Do not create the whatis database.
- -p
- Display the commands that would have been executed, but do not actually
      execute them.
- -s
- Perform work silently; do not echo commands as they are executed. This
      flag is ignored if -pis specified.
- -w
- Only create the whatis database.
- -mdirectory
- Add directory to the set of directories to be
      updated.
- -Mdirectory
- Update manual pages in directory.
Currently does not handle hard links.