Kernel parameters.

I've been trying to find out the following parameters of our Unix box:
==>OS version
==> patch level
and the following kernel parameters
=>maxfiles_lim
=>maxvgs
=>nproc
=>msgmni
=>ncsize
=>nfile
Could someone help me how would I find the above(commands)?
Thanks,
Bhagat

>OS -> uname -r
>patchlevel -> There's no such thing with HPUX (more a aix stuff) but to see what patches man swlist... (swlist -l fileset...)

>the following kernel parameters
-> for a start you can look at sysdef