How can I find the HP-UX equivalent for a given Solaris/AIX/etc.. commands?

-->Rosetta Stone for UNIX (A Sysadmin's Universal Translator; or
"What do they call that in this world?") provides a very nice AIX/
DG-UX/FreeBSD/HP-UX/IRIX/Linux/NetBSD/OpenBSD/Solaris/
SunOS/Tru64/Ultrix etc quivalency table at:

http://bhami.com/rosetta.html

-->UNIXguide.net also provides a
AIX/FreeBSD/HP-UX/Linux(RedHat)/Solaris/Tru64 equivalency
table, at:

http://www.unixguide.net/unixguide.shtml