Linux arch command

Updated: 11/06/2021 by Computer Hope
arch command

On GNU/Linux operating systems, the arch command outputs the architecture identifier string of the current host CPU.


This page describes the arch command. For the operating system, see Arch Linux.


The arch command is the functional equivalent of running the following uname command:

uname -m

The output is an architecture identifier strings, such as i386, i486, i586, i686, x86_64, alpha, sparc, arm, m68k, mips, or ppc.


arch [OPTION]


--help Display a help message, and exit.
--version Output version information, and exit.



Displays the architecture of the current host. For example, arch may display 'sun4' for a Sun Solaris machine or 'x86_64' for the x86 64-bit architecture.

mach — Display the processor of the current system.
uname — Print information about the current system.