If you are a running a server it is often important to know what version you are using, 32-bit or 64-bit. Here are multiple ways to determine that
CentOS 7 is here! If you are upgrading your server you need to know what version you are running first. Here are 2 reliable methods.
Method 1: “Uname”
One way to determine what version you are using is to simply enter the command uname -a
Enter this into a shell:
uname -a
A shell is a connection via a SSH terminal, the most common tool on Windows is Putty. On Linux you can simply use the terminal for that.
Result: i686 => 32-Bit CentOS
If you enter it and get this back: i686, then you are on a 32-bit server
Result: x86_64 => 64-Bit CentOS
But if you get this back x86_64, it is a 64-bit server
Method 2 More Reliable: getconf
The 2nd method I recommend is getconf:
getconf LONG_BIT
Enter this into a shell and you will get either 32 or 64.
This is the most reliable method I know and will directly deliver what you have been asking for. Neat!
Know of any other good methods? Let us know in the comments.
