02-15-2008
a unix command would be
>sort rawfile -t'|' -k1.21,1.30 -r
Carl________15_X_Way____A004________LX
Will________2_A_St______A003________LX
Benny_______5_Spring____A002________LX
Joe_________12_Main_St__A001________LX
and that ordered my file reverse by what is in positions 21-30.
I did this by:
(a) specifying the 'tab' or key flag as the '|' which does not exist; thus all is considered field 1
(b) said to sort on k1.21,1.30 which translated to field one positions 21 to 30
(c) and the -r put in reverse order
So in perl, I figure somehow I need to define that I want to use character positions 21-30 as the key field. Then give a command to sort on those positions.
Perhaps this needs to be its own subroutine. I do not know.
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