How can I tell if my server is running Ubuntu as 64-bit or 32-bit

Possible Duplicate:
Determine Linux Server’s Architecture (32 or 64 bit)

I want to install a package and it has a version for 32-bit ubuntu and 64-bit. How can I tell which one is running on my server?

From serverfault Joseph Silvashy

• um.. if anyone else wants to know, I figured it out:

  uname -m
  

  cop1152 : even better.... +1
  From Joseph Silvashy

• use the command

  uname -a

  read the string. It will be near the end. Example:

  Linux ora100 2.6.5-7.252-smp #1 SMP Tue Feb 14 11:11:04 UTC 2006 x86_64 x86_64 x86_64 GNU/Linux

  Nunya : On what distribution did you get that result? I get a different result than yours but all the same from my laptop and three of my servers. Or is the fact that it says i686 the give away to 32 bit? [Mepis] Linux MOBIL-01 2.6.27-1-mepis-smp #1 SMP PREEMPT Mon Oct 12 21:22:47 EDT 2009 i686 GNU/Linux [CentOS] Linux SHODAN 2.6.18-164.9.1.el5 #1 SMP Tue Dec 15 21:04:57 EST 2009 i686 i686 i386 GNU/Linux [two X Debian] Linux BOSS 2.6.26-2-486 #1 Wed Nov 4 20:19:07 UTC 2009 i686 GNU/Linux Linux ARDVARC 2.6.26-2-686 #1 SMP Wed Nov 4 20:45:37 UTC 2009 i686 GNU/Linux
  From cop1152

• You know when you're typing out a question it lists similar ones? Well it makes sense to look at them in case the question has been asked before;

  http://serverfault.com/questions/61673/determine-linux-servers-architecture-32-or-64-bit

  Farseeker : How about contributing a vote to close as exact duplicate?

  womble : Nah, making snarky comments-as-answers is far more fun.

  Chopper3 : Sorry farseeker I was posting from my phone (in bed too, which is quite sad really) and it's quite complex to do that in that way.

  Joseph Silvashy : Thanks for the input guys!

  womble : You can't post a comment from your phone, but you can look up a dupe and post an answer? That's one weird phone.

  Chopper3 : You misunderstand, for some reason my iphone struggles to deal with closing, not commenting or posting - it could be a user error :)
  From Chopper3

• If you have a 64bit server, it can run either one (32 or 64) but I would stick with 64bit whenever possible. And Ubuntu usually sticks with the one that it was installed with in my case.

  From Kyle

• If you want to check the version of the package and not the version of the server, do either one of the following commands:

  dpkg -s <packagename>
  dpkg -p <packagename>
  

  to print out the details of the package. For example, it will look like this:

  $ dpkg -s zip
  Package: zip
  Status: install ok installed
  Priority: optional
  Section: utils
  Installed-Size: 644
  Maintainer: Ubuntu Core Developers <ubuntu-devel-discuss@lists.ubuntu.com>
  Architecture: amd64
  Version: 3.0-1ubuntu1
  Replaces: zip-crypt (<= 2.30-2)
  Depends: libc6 (>= 2.7)
  Recommends: unzip
  Conflicts: zip-crypt (<= 2.30-2)
  Description: Archiver for .zip files
   This is InfoZIP's zip program. It produces files that are fully
   compatible with the popular PKZIP program; however, the command line
   options are not identical. In other words, the end result is the same,
   but the methods differ. :-)
   .
   This version supports encryption.
  Original-Maintainer: Santiago Vila <sanvila@debian.org>
  

  From sybreon