What do the numbers in a man page mean?
http://www.postfix.org/qmgr.8.html The qmgr(8) daemon awaits t
what's the meaning of 8?
just don't know it.
Do a 'man man' to get more information. The numbers are the various topic section of man pages, 8 being System administration commands and stuff. I think this question has been answered before though.