CODEWITHSUNDEEP
linuxlinux-kernel64-bitcpu32bit-64bit
xyz
xyz

Reputation: 8917

Finding if kernel is 32-bit or 64-bit on Linux

When I run uname -a, I get:

Linux 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux

and I understand that x86_64 is supposed to imply 64-bit kernel, but why does this number appear 3 times? What does each instance signify?

Upvotes: 1

Views: 399

Answers (3)

user529758
user529758

Reputation:

Uname has separate commands to print "machine, processor and hardware platform" -- all of these are all the same in your case. The following outputs, respectively, may make it clear:

~$ uname -m # print machine
x86_64
~$ uname -p # print processor
x86_64
~$ uname -i # print hw platform
x86_64

Upvotes: 4

Sandy8086
Sandy8086

Reputation: 643

use uname -m command to display only name of the kernel.

in your case

uname -m

x86_64

means 64-bit

Upvotes: 3

Brijesh Valera
Brijesh Valera

Reputation: 1117

uname -a

will give you all details about your system. It includes machine hardware name, processor type & hardware platform too.

So,

  1. x86_64 is machine name.
  2. x86_64 is processor type.
  3. x86_64 is hardware platform.

Use:

uname --help

to get more idea about its options.

Upvotes: 2

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