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Top Forums Shell Programming and Scripting Merging strings which have deviation in frequency Post 302912581 by Scrutinizer on Sunday 10th of August 2014 03:56:27 AM
Old 08-10-2014
Hi, try:
Code:
 awk -F'= *| ' 'NR==FNR{if($3>M[$1]){M[$1]=$3; P[$1]=$2} next} $3<0.9*M[$1]{$2=P[$1]}{print $1"="$2,$3}' file file

The input file is specified twice..

The field separator is = *| because in your sample there are sometimes spurious space behind the = signs. If that is not the case with your real date, you could use -F'[= ]'
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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