Hi All,
I need to add up values given by the grep command.Following is the sample:

[root@iqmango ~]# grep cores /proc/cpuinfo
cpu cores       : 4
cpu cores       : 4
cpu cores       : 4
cpu cores       : 4
cpu cores       : 4
cpu cores       : 4
cpu cores       : 4
cpu cores       : 4

If you want to know the no of occurence of cores you can pipe your grep comand to wc -l

ie grep cores /proc/cpuinfo |wc -l



Cheers,
Santy

This won;t work , because I need to count the total number of cores , including all processors.

[root@iqmango ~]# grep cores /proc/cpuinfo |wc -l
8

Try This...
grep cores /proc/cpuinfo | awk '{print $4}' | nawk '{sum +=$1} END{print sum}'

Thnx,
Christine Ida

Actually, that's not going to give you the right number, because there is an entry in /proc/cpuinfo for each core. So if you have 2 4-core processors, even though there will be 8 entries in /proc/cpuinfo, each will report that their processor contains 4 cores, and you will get a result of 32 when in fact you only have 8 cores.

santysham's solution will actually give you the correct result, perhaps in a not very obvious way. You can abbreviate it to grep -c cores /proc/cpuinfo.

Thank you all for the replies!

I had to count the total number of cores for the server.

Christineida's solution works perfect for me..! Thanks a lot christineida!

Sure, it works, but the result is wrong! ;-)