linux system physical cpu information inquiry

1. Check the CPU model
        　　 CAT / proc / cpuinfo | grep name | Cut -f2 -d: | uniq -c 
 2. Check the physical CPU number
          　　 cat / proc / cpuinfo | grep " physical id" | sort | uniq | wc - L 
3. See logical CPU number
            　　 CAT / proc / cpuinfo | grep "Processor" | -l WC 
4. See few CPU core
            　　  cat / proc / cpuinfo | grep "  cores" | uniq