How to get CPU serial under Linux without root permissions

linux x86 cpu serial-number cpuid
Alexey picture Alexey · Feb 18, 2011 · Viewed 36.4k times · Source

How can I get CPU serial number under Linux (Ubuntu) without root permissions?

I tried cpuid command, it works without root permissions, but appears to return all zeros (I believe because something needs to be changed in BIOS).

Can you please suggest me another way to retrieve CPU serial from a program without root permissions and without having to modify BIOS?

Answer

ETech picture ETech · Apr 10, 2014

Root permissions required. The answer is dmidecode.
If you need CPU ID:

dmidecode | grep -w ID | sed "s/^.ID\: //g"

This will get CPU ID, remove 'ID: ' from output
If you need to receive a computer ID:

dmidecode | grep -w UUID | sed "s/^.UUID\: //g"

If you wish to get kernel uuid without root permissions, then: 

dmesg | grep UUID | grep "Kernel" | sed "s/.*UUID=//g" | sed "s/\ ro\ quiet.*//g"

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