Question : Intel(R) Celeron(R) D CPU 3.06GHz on a Linux machine

Hello, I need to find out how many bit processor my linux machine has.  It is using a
Intel(R) Celeron(R) D CPU 3.06GHz
It is either 32 or 64, more than likely it is 32, but is there a Linux command which will give me this information.  I tried cpuinfo but it was not stated.  All I got is; Intel(R) Celeron(R) D CPU 3.06GHz

Answer : Intel(R) Celeron(R) D CPU 3.06GHz on a Linux machine

This command  wil tell whether ur processor is 32 or 64 bit

$ grep flags /proc/cpuinfo


Output :
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm



CPU Modes:
lm means Long mode - 64 bit CPU
Real mode 16 bit CPU
Protected Mode is 32-bit CPU