Remove x number of lines from beginning of file
smorrey at gmail.com
Thu Oct 25 16:52:38 MDT 2007
What about using nice and running it at a higher priority?
On 10/25/07, Shane Hathaway <shane at hathawaymix.org> wrote:
> Jon Gale wrote:
> > [root at linuxboy root]# time sed -i -e '1,4d' test.txt
> > real 1m13.596s
> > user 0m18.020s
> > sys 0m52.930s
> > test2.txt is only 100 lines. test.txt is 10,000,000 lines.
> > Is there a better way to do this that won't necessitate scanning the entire
> > file just to remove the first x number of lines?
> The majority of that time is spent in I/O, not computation. The best
> way to accomplish this would be to write the output to a different hard
> drive with similar specs, enabling you to use the combined throughput of
> both drives.
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