First parameter, NAME, should be all caps
Second parameter, SECTION, should be 1-8, maybe w/ subsection
other parameters are allowed: see man(7), man(1)
(The comments found at the beginning of the groff file "man1/apm_available.1".)
apm_available - test whether APM subsystem is available
checks whether the APM ("Advanced Power Management") subsystem is
available, as evidenced by the presence of the /proc/apm file.
0 (true) APM subsystem is available
1 (false) APM subsystem is not available
2 usage error (arguments supplied)
/proc/apm APM status information file
This manual page was written by Thomas Hood <email@example.com>.