uname

Uname prints information about the machine and operating system it is run on. More information: https://www.gnu.org/software/coreutils/manual/html_node/uname-invocation.html.

uname --all

uname --kernel-name

uname --nodename

uname --kernel-release

uname --kernel-version

uname --machine

uname --processor

uname --operating-system