Originally Posted by onebuck
The '-i' option is for platform. If you want the cpuinfo then do a 'cat /proc/cpuinfo' to show that information.
That answer may confuse anyone who needed to ask the original question.
'cat /proc/cpuinfo' contains info that tells you whether your CPU is 32bit or 64bit. That doesn't tell you whether the copy of Linux you are running is 32bit or 64bit.
I always use 'uname -a' to determine whether Linux is 32bit or 64bit (I use remote access to a few different Linux systems and forget which is which). But there are many other possible commands that could give the same info.