uname : print system information
[SYNOPSIS] uname OPTION
OPTION
-a print all information, in the following order, except omit -p and -i if unknown
-s print the kernel name
-n print the network node hostname
-r print the kernel release
-v print the kernel version
-m print the machine hardware name
-p print the processor type (non-portable)
-i print the hardware platform (non-portable)
-o print the operating system