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Top Forums UNIX for Dummies Questions & Answers Copying part of a data file into another Post 302829991 by latsyrc on Sunday 7th of July 2013 05:45:09 PM
Old 07-07-2013
Copying part of a data file into another

Hi,
I have a large number of data files each containing simple integers from 1 to around 25000 in ascending order. However, they are not in a specific progression; some numbers are missing in each file.
For ex. datfile1 may have the numbers in order 1 2 4 6 7 8 12 ... 24996 24999
while datfile2 may have them in order 1 3 5 6 8 9 ... 24999 25000

For each data file, I want to create a new one which has only the integers greater than 16000.
For ex. newdatfile1 may have numbers 16001 16003 16004 ... 24996 24999

The problem is I know very little about UNIX. So, any help will be highly appreciated.
 

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slamrg.f(3)							      LAPACK							       slamrg.f(3)

NAME
slamrg.f - SYNOPSIS
Functions/Subroutines subroutine slamrg (N1, N2, A, STRD1, STRD2, INDEX) SLAMRG creates a permutation list to merge the entries of two independently sorted sets into a single set sorted in ascending order. Function/Subroutine Documentation subroutine slamrg (integerN1, integerN2, real, dimension( * )A, integerSTRD1, integerSTRD2, integer, dimension( * )INDEX) SLAMRG creates a permutation list to merge the entries of two independently sorted sets into a single set sorted in ascending order. Purpose: SLAMRG 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 REAL 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. STRD1 STRD1 is INTEGER STRD2 STRD2 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 (STRDx = 1) or descending (STRDx = -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: September 2012 Definition at line 100 of file slamrg.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.2 Tue Sep 25 2012 slamrg.f(3)
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