Query the installed patches

Platform	Command and Description
Linux platform (Assuming the IT had used RPM installation process)	Installed Packages and version
	rpmquery -a
	Kernerl version
	uname -a
	CPU/MEM information
	cat /proc/cpuinfo
	cat /proc/meminfo
SUN platform	Installed Packages and version
	showrev -a
	Kernel version
	uname -a
	CPU/MEM information
	/usr/platform/sun4u/sbin/prtdiag -v
HP platform	Installed Packages and version
	/usr/sbin/swlist
	Kernel version
	uname -a
	CPU/MEM information
	CPU: uname -r
	MEM: ?????
AIX platform	Installed Packages and version
	/bin/lslpp -L all
	Kernel version
	/bin/oslevel
	CPU/MEM information
	/usr/sbin/prtconf