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Full Discussion: how to extract last line in record
Top Forums Shell Programming and Scripting how to extract last line in record Post 86312 by Ygor on Thursday 13th of October 2005 05:20:40 AM
Old 10-13-2005
I've merged the threads as the questions are very similar. For the first question, try...
Code:
tail +2 file.dat | awk -v RS= '
    $3>$6 && $3>$9 {print $1,$3}
    $6>$3 && $6>$9 {print $4,$6}
    $9>$6 && $9>$6 {print $7,$9}
'

...which gives...
Code:
1 9
2 8
3 7

For the second question...
Code:
awk -v RS= '{print $(NF-2),$(NF-1),$NF}' file.dat

For these kinds of problems you can't just use grep. You have to write some code. If you don't know awk, then use another language that you are familiar with.
 

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LEARN ABOUT CENTOS

gsl-randist

GSL-RANDIST(1)						      General Commands Manual						    GSL-RANDIST(1)

NAME

       gsl-randist - generate random samples from various distributions

SYNOPSYS

       gsl-randist seed n DIST param1 param2 [..]

DESCRIPTION

       gsl-randist  is a demonstration program for the GNU Scientific Library.	It generates n random samples from the distribution DIST using the
       distribution parameters param1, param2, ...

EXAMPLE

       Here is an example.  We generate 10000 random samples from a Cauchy distribution with a width of 30 and histogram them over the range  -100
       to 100, using 200 bins.

	    gsl-randist 0 10000 cauchy 30 | gsl-histogram -100 100 200 > histogram.dat

       A  plot	of  the  resulting histogram will show the familiar shape of the Cauchy distribution with fluctuations caused by the finite sample
       size.

	    awk '{print $1, $3 ; print $2, $3}' histogram.dat | graph -T X

SEE ALSO

       gsl(3), gsl-histogram(1).

AUTHOR

       gsl-randist was written by James Theiler and Brian Gough.  Copyright 1996-2000; for copying conditions see the GNU General Public Licence.

       This manual page was added by the Dirk Eddelbuettel <edd@debian.org>, the Debian GNU/Linux maintainer for GSL.

GNU
																    GSL-RANDIST(1)
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