From: a24061@ducksburg.com   
      
   Hi   
      
   I have a Pi 4 B that I use headlessly over SSH. I can't remember   
   whether I installed the 32-bit or 64-bit OS on it, but different   
   commands found on the web give different results.   
      
   $ uname -m   
   aarch64   
      
   $ getconf LONG_BIT   
   32   
      
   $ dpkg --print-architecture   
   armhf   
      
   Which one is right?   
      
   Thanks   
      
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