uname

Show all system information

$ uname -a

$ uname -s

$ uname -n

$ uname -r

$ uname -v

$ uname -m

$ uname -o

uname [options]

uname prints system information about the machine and operating system. It's commonly used in scripts to detect the platform and adjust behavior accordingly.
The most common uses are uname -a for all information and uname -m to determine the system architecture (useful for downloading correct binaries).
Different Unix systems may support different options. The -s, -n, -r, -v, and -m options are most portable across Unix variants.

-a, --all

Print all information

Print kernel name (e.g., Linux)

Print network hostname

Print kernel release (e.g., 5.15.0-generic)

Print kernel version

Print machine hardware name (e.g., x86_64, arm64)

Print processor type

Print hardware platform

Print operating system

On some systems, -p and -i may return "unknown" if the information isn't available.
The output of uname -m varies by system: x86_64, amd64, arm64, aarch64 may represent similar architectures on different systems.
For detailed OS distribution information on Linux, check /etc/os-release or use lsb_release.

hostname(1), arch(1), hostnamectl(1), lsb_release(1)