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Top Forums Shell Programming and Scripting Filter Row Based On Max Column Value After Group BY Post 302978976 by Scrutinizer on Sunday 7th of August 2016 11:06:14 AM
Old 08-07-2016
Also try:
Code:
awk -F \| '$6>M[$1,$4]{M[$1,$4]=$6; R[$1,$4]=$0} END{for(i in R) print R[i]}'  file

Please note that the comparison of $6 is a string comparison, not a numerical comparison. It is not clear what is regarded to be the "greater value"
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fstrcasecmp(3)						     Library Functions Manual						    fstrcasecmp(3)

NAME
fstrcasecmp - fuzzy comparison of two strings ignoring case SYNOPSIS
#include <fstrcmp.h> #define FSTRCMP_IDENTICAL #define FSTRCMP_THRESHOLD #define FSTRCMP_ERROR double fstrcasecmp(const char *string1, const char *string2); DESCRIPTION
The fstrcmp() function compares the two strings, string1 and string2, ignoring case. RETURN VALUE
The fstrcasecmp function returns a floating point value between 0.0 and FSTRCMP_IDENTICAL. A value of 0.0 means the strings are utterly un-alike. A value of FSTRCMP_IDENTICAL means the strings are identical. A value of more than FSTRCMP_THRESHOLD (it lies between 0.0 and FSTRCMP_IDENTICAL) would be considered "similar" by most people. A value of FSTRCMP_ERROR (always negative) indicates a malloc(3) failure. SEE ALSO
fmemcmp(3) fuzzy comparison of two memory areas fstrcasecmpi(3) fuzzy comparison of two strings ignoring case fstrcmp(3) fuzzy comparison of two strings strcasecmp(3) compare two strings ignoring case COPYRIGHT
fstrcmp version 0.4 Copyright (C) 2009 Peter Miller Peter Miller <pmiller@opensource.org.au> The comparison code is derived from the fuzzy comparison functions in GNU Gettext 0.17. The GNU Gettext comparison functions were, in turn, derived from GNU Diff 2.7. Copyright (C) 1988-2009 Free Software Foundation fstrcasecmp(3)
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