arch

Print machine architecture

$ arch

arch

arch prints the machine hardware architecture. On Linux, this is typically equivalent to uname -m.
Common outputs include:
- x86_64: 64-bit Intel/AMD
- aarch64 or arm64: 64-bit ARM
- i686 or i386: 32-bit Intel
- armv7l: 32-bit ARM

Output varies by system and may differ from CPU marketing names. Some systems may return different strings for compatibility modes.

arch has been available on Unix systems since BSD. On Linux, it's part of coreutils and provides a simple wrapper around uname.

uname(1), hostnamectl(1)