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Re: [vox] vim magic
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Re: [vox] vim magic

> In this particluar instance, I was testing HD performance between 2
> different kernels. I was booting each kernel and running the following:
> hdparm -T /dev/hda | grep Timing | cut -d: -f2 | cut -d\= -f1
> in a loop with the output going to a file, resulting in a file that
> looked something like:
>    724 MB in  2.01 seconds
>    744 MB in  2.00 seconds
> etc. A total for the columns would have let me calculate a quick
> average.

why not use awk to do the summation:
...using whitespace as a delimeter $4 = time column

awk '{x = x + $4} END {print x}' input_file

..output will be the sum of column 4

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