uname
print system information
if no option same as -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

-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

-i, --hardware-platform
         print the hardware platform

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

--help display this help and exit

--version
         output version information and exit