[ILUG] Re: perl file processing
francisdaly at gmail.com
Thu Oct 9 00:35:22 IST 2008
2008/10/8 Marcus Furlong <furlongm at hotmail.com>:
> I ran both yours and Francis' from a shell script over the 250 files,
> and out of curiosity, I checked the times for each.
More idle curiosity, which might be interesting -- were the calculated
> The sed/awk one comes out with the following:
> real 0m32.733s
> user 0m10.915s
> sys 0m11.838s
> whereas the pure awk one is a lot faster:
> real 0m18.239s
> user 0m2.035s
> sys 0m2.761s
> Ran a few times just in case, and those times are fairly consistent. Anyway
> thanks to you both!
On those numbers, it should take about a minute to find out.
Replace "," with ";print" each time in the END block of my awk, and
you should get two sets of output which are easily diff'able.
For presentation, you might also like to set OFMT="%.3g" before
printing -- that limits the number of printed significant figures. Or
use "f" for decimal places, depending on the input range.
More information about the ILUG