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Full Discussion: Sort by specific order?
Top Forums Shell Programming and Scripting Sort by specific order? Post 302764953 by cabrao on Friday 1st of February 2013 07:17:23 AM
Old 02-01-2013
Sure, here's an example.
A file containing the following ascii text:
Code:
axxx whatever xxxx ...
pxxx whatever xxxx ...
daxxx whatever xxxx ...
sxxx whatever xxxx ...
dbxxx whatever xxxx ...

should be sorted as:

Code:
daxxx whatever xxxx ...
dbxxx whatever xxxx ...
sxxx whatever xxxx ...
axxx whatever xxxx ...
pxxx whatever xxxx ...

Only first char is important to define order (order should be d,s,a,p) - which means, fist char will always be one of this letters (d,s,a,p)
After first char normal alphanumeric sort is fine (1,2...9,a,b,c,d...z)
 

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dlasrt.f(3)							      LAPACK							       dlasrt.f(3)

NAME
dlasrt.f - SYNOPSIS
Functions/Subroutines subroutine dlasrt (ID, N, D, INFO) DLASRT Function/Subroutine Documentation subroutine dlasrt (characterID, integerN, double precision, dimension( * )D, integerINFO) DLASRT Purpose: Sort the numbers in D in increasing order (if ID = 'I') or in decreasing order (if ID = 'D' ). Use Quick Sort, reverting to Insertion sort on arrays of size <= 20. Dimension of STACK limits N to about 2**32. Parameters: ID ID is CHARACTER*1 = 'I': sort D in increasing order; = 'D': sort D in decreasing order. N N is INTEGER The length of the array D. D D is DOUBLE PRECISION array, dimension (N) On entry, the array to be sorted. On exit, D has been sorted into increasing order (D(1) <= ... <= D(N) ) or into decreasing order (D(1) >= ... >= D(N) ), depending on ID. INFO INFO is INTEGER = 0: successful exit < 0: if INFO = -i, the i-th argument had an illegal value Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: November 2011 Definition at line 89 of file dlasrt.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.1 Sun May 26 2013 dlasrt.f(3)
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