用法：uname [選項]...Print certain system information.  With no OPTION, same as -s.  -a, --all                print all information, in the following order,                             except omit -p and -i if unknown:  -s, --kernel-name        print the kernel name  -n, --nodename           print the network node hostname  -r, --kernel-release     print the kernel release  -v, --kernel-version     print the kernel version  -m, --machine            print the machine hardware name  -p, --processor          print the processor type or "unknown"  -i, --hardware-platform  print the hardware platform or "unknown"  -o, --operating-system   print the operating system      --help     顯示此幫助信息并退出      --version  輸出版本信息并退出