Tag Archives: 23bit or 64bit

Find Linux OS is 32 or 64bit.

There are several situations where you need to confirm whether your Linux OS installed  is 32bit or 64bit. People normally use uname -a to find it. But the following command will tell you exactly the machine   architecture.

getconf LONG_BIT

getconf utility shall conform to the Base Definitions volume of IEEE Std 1003.1-2001, Section 12.2, Utility  Syntax.

eg:

[root@localhost ~]# getconf LONG_BIT
32
[root@localhost ~]#

My machine is 32bit.