Determining Whether Ubuntu is 32-bit or 64-bit

Introduces how to determine whether a Linux PC/server running Ubuntu is 32-bit or 64-bit.

uname -a

If the output is as follows, it’s 32-bit

... i686 i686 i386 GNU/Linux

If the output is as follows, it’s 64-bit

... x86_64 x86_64 GNU/Linux