Determine whether linux is 64-bit or 32-bit

Method 1:

getconf LONG_BIT

Enter the getconf LONG_BIT command in the Linux terminal. If it is a 32-bit machine, the result will be 32.

For example:

[root@localhost ~]# getconf LONG_BIT
32

If it is a 64-bit machine, the result is 64.

[root@localhost ~]# getconf LONG_BIT
64

Method 2:

uname -a

If it is a 64-bit machine, x86_64 will be output.

[chenzhou@testweb01 ~]$ uname -a
Linux testweb01 2.6.18-308.4.1.el5 #1 SMP Tue Apr 17 17:08:00 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux

You can see that x86_64 is output in the execution result of uname-a, indicating that the machine is 64-bit, otherwise it means that the machine is 32-bit.

[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:54 EDT 2009 i686 i686 i386 GNU/Linux

Recommended tutorial: linux tutorial

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