How many bits in my Ubuntu?

Question

How can I find 32 or 64 bit my OS is? I thought uname returns it, but I can't find it there.

> uname -a
> Linux fl00r 2.6.35-27-generic-pae #48-Ubuntu SMP Tue Feb 22 21:46:58 UTC 2011 i686 GNU/Linux

This is a question for Super User, where it's already been answered many times, for example here.

Laurent · Answer 1 · 2011-03-17 10:30:36Z

up vote 6 down vote accepted

Your kernel is a i686 version, so 32 bits.

answered Mar 17 '11 at 10:30

i386 and i686 is 32 bit? and which kernels are for 64? – fl00r Mar 17 '11 at 10:32

Yes, they are. 64 bits kernels are for example, amd64 or ia64. – Laurent Mar 17 '11 at 10:42

thank you, @Laurent :) – fl00r Mar 17 '11 at 10:44

3

64bit may also be written as x86_64 which might cause some confusion. – chunkyb2002 Mar 17 '11 at 10:51

feedback

user74806 · Answer 2 · 2011-03-17 11:24:37Z

Something not quite on the question but something u might find useful,

more /etc/issue

tells u about the OS on nearly all *nix boxes.

Also check out: /proc

ie: more /proc/version

Hope it helps

2 Answers