Target Audience: Beginners of Linux/Unix Users
Many beginners of Linux/Unix users might struggle or uncertain when they download softwares for Linux/Unix to choose correct software according to its kernel ie. 32 bit or 64 bit.
The uname command gives you the solution. Execute the following command in terminal:
$ uname -a
If the result contains x86_64, its 64 bit kernel.
If the result contains i386 or i486 or i586 or i686, its 32 bit kernel.