System info and preferences from the Terminal in Mac OS X
sw_vers Syntax:sw_vers Explanation:Displays a system summary of your Mac. system_profiler Syntax:system_profiler [-Options or Type(s)] Usage/Explanation:Displayed detailed information about your Mac including the hardware. Options -detailLevel <lvl> Decide how detailed the description will be. <lvl> can be mini, basic or full. -listDataTypes Displays all available categories (as specified below).