uname [OPTION(s)]...

-a, --all
  print all information, in the following order:
              
-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

-o, --operating-system
  print the operating system

-h, --help 
  display help and exit

-v, --version 
  output version information and exit