To Find Swap, RAM, and OS Version
========================================
OS RAM
----------- ----------------------------------------
AIX /usr/sbin/lsattr -HE -l sys0 -a realmem
HP PA-RISC grep "Physical:" /var/adm/syslog/syslog.log
HP Itanium /usr/contrib/bin/machinfo | grep -i Memory
Tru64 vmstat -P
Solaris /usr/sbin/prtconf | grep -i memory
Linux free
Mac OS X /usr/sbin/system_profiler SPHardwareDataType | grep Memory
========================================================================