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Top Forums Shell Programming and Scripting How to sort a string with numbers Post 302152699 by ahjiefreak on Thursday 20th of December 2007 11:40:40 PM
Old 12-21-2007
How to sort a string with numbers

Hi,

I need help to sort a file contents.

I am using sort -r option to basically reverse the comparison in descending order. However, i found out that my file is not sorted according, can anyone please help.

My data is something like:-
Hello world
20.982342864 343
19.234355545 222
1.5567846 345
17.8767787 200

If I use the option -g or -n it works..but it is in ascending order. but I would like to display in descending order.I tried -nr but the Hello world line would be reverse as well as the last item.

My desired output would be
Hello world
20.982342864 343
19.234355545 222
17.8767787 200
1.5567846 345


Thanks.

Last edited by ahjiefreak; 12-21-2007 at 12:48 AM..
 

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dlamrg.f(3)							      LAPACK							       dlamrg.f(3)

NAME
dlamrg.f - SYNOPSIS
Functions/Subroutines subroutine dlamrg (N1, N2, A, DTRD1, DTRD2, INDEX) DLAMRG Function/Subroutine Documentation subroutine dlamrg (integerN1, integerN2, double precision, dimension( * )A, integerDTRD1, integerDTRD2, integer, dimension( * )INDEX) DLAMRG Purpose: DLAMRG will create a permutation list which will merge the elements of A (which is composed of two independently sorted sets) into a single set which is sorted in ascending order. Parameters: N1 N1 is INTEGER N2 N2 is INTEGER These arguements contain the respective lengths of the two sorted lists to be merged. A A is DOUBLE PRECISION array, dimension (N1+N2) The first N1 elements of A contain a list of numbers which are sorted in either ascending or descending order. Likewise for the final N2 elements. DTRD1 DTRD1 is INTEGER DTRD2 DTRD2 is INTEGER These are the strides to be taken through the array A. Allowable strides are 1 and -1. They indicate whether a subset of A is sorted in ascending (DTRDx = 1) or descending (DTRDx = -1) order. INDEX INDEX is INTEGER array, dimension (N1+N2) On exit this array will contain a permutation such that if B( I ) = A( INDEX( I ) ) for I=1,N1+N2, then B will be sorted in ascending order. Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: November 2011 Definition at line 100 of file dlamrg.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.1 Sun May 26 2013 dlamrg.f(3)
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