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Merge output of 2 commands into variable


 
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# 1  
Merge output of 2 commands into variable

I am extracting two pieces of information from the following file: /proc/cpuinfo, that I need to merge into one report.

The first command:
Code:
grep -i processor /proc/cpuinfo | awk '{print $1$2,$3}'

yields:
Code:
processor: 0
processor: 1
processor: 2
processor: 3



The second command:
Code:
grep -i "model name" /proc/cpuinfo | awk '{print $4, $5, $6, $7, " ", $8, $9, $10, $11}'

yields:

Code:
Intel(R) Core(TM) i3 CPU   M 370 @ 2.40GHz
Intel(R) Core(TM) i3 CPU   M 370 @ 2.40GHz
Intel(R) Core(TM) i3 CPU   M 370 @ 2.40GHz
Intel(R) Core(TM) i3 CPU   M 370 @ 2.40GHz

I want a report that looks like this:
Code:
processor: 0 Intel(R) Core(TM) i3 CPU   M 370 @ 2.40GHz
processor: 1 Intel(R) Core(TM) i3 CPU   M 370 @ 2.40GHz
processor: 2 Intel(R) Core(TM) i3 CPU   M 370 @ 2.40GHz
processor: 3 Intel(R) Core(TM) i3 CPU   M 370 @ 2.40GHz


I am working from a live CD, so I cannot use files. I figure this can be done using a variable or array. I'm still learning Bash, so a point in the right direction would be most helpful.



Last edited by Scrutinizer; 10-15-2012 at 02:29 AM.. Reason: code tags
# 2  

Code:
awk '/^processor/ { processor = $0 }
/^model name/ { print processor, $0 }
' /proc/cpuinfo

I'll leave the removal of "model name :" to you.
This User Gave Thanks to cfajohnson For This Post:
# 3  
Merge output of 2 commands into variable

I got it! I can see it is well worth spending some time with awk.

Thanks very much for your help.

Regards,
jamarsh
# 4  
Another way, perhaps in other circumstances, could be to use named pipes. For instance:
Code:
$ mkfifo cmd1 cmd2
$ exec 2>/dev/null; echo -e "this\nthat" >cmd1 & echo -e "first\nsecond" >cmd2 & paste cmd1 cmd2; rm cmd1 cmd2; exec 2>/dev/tty
this	first
that	second
$

--
Bye
This User Gave Thanks to Lem For This Post:
# 5  
I shall review this option as well. I have another area to look into - named pipes.
Thanks so much
jamarsh

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