arch

View documentation for the original command

$ tldr uname

arch [OPTION]...
Print machine architecture (same as uname -m).

-?, --help
    display this help and exit

-V, --version
    output version information and exit

The arch command displays the processor architecture of the host system, equivalent to uname -m. It outputs a single word like x86_64, i686, aarch64, or armv7l, depending on the hardware.

This utility is invaluable in scripts for architecture detection, conditional builds, or system diagnostics. As part of GNU coreutils, it is available on virtually all Linux distributions and POSIX-compliant systems.

No operands are accepted; only options for help or version info. It provides a concise, standardized way to query hardware without parsing more verbose outputs from other tools.

Does not execute commands or change process personality; use setarch(8) for architecture emulation.

arch
Output: x86_64

Part of GNU coreutils since 1990s, derived from traditional Unix arch utility for machine type reporting.

uname(1), setarch(8)