Determiner Version Mac OS
man sw_vers | tail 1 man sw_vers | tail shows you the file you need to look at, namely: [crayon-660678efe19e2699887169 ]/System/Library/CoreServices/SystemVersion.plist /System/Library/CoreServices/ServerVersion.plist 12 [crayon-660678efe19e2699887169 ]/System/Library/CoreServices/SystemVersion.plist/System/Library/CoreServices/ServerVersion.plist [/crayon] When you cat 1 cat those files, you learn what you need to know.