AWK - cutting out some rubbish

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cutting out some rubbish

nhbfluci@rrzn-user.uni-hannover.de

2004-05-03, 1:34 pm

Hi,

I have a file which is in a "standard format" execpt for some
header and footer that I simply want to cut.
That is, want to cut 5 lines at the top and 5 lines
at the bottom of my file.
How to do this with awk ?

Luciano

Stefan Lagotzki

2004-05-03, 1:34 pm

Charles Demas <demas@TheWorld.com>:
> But even simpler is the code I wrote:
> awk '{a[NR]=$0} NR > 5 {print a[NR - 5]}' myfile
> and that only reads the file once.

awk '{a[NR]=$0} NR > 10 {print a[NR - 5]}' myfile

should cut 5 lines at the top and 5 lines at the bottom of
the file:

$ seq 1 1 15 > myfile
$ awk '{a[NR]=$0} NR > 10 {print a[NR - 5]}' myfile
6
7
8
9
10

Stefan

..

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