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Top Forums Shell Programming and Scripting Getting max value of specific fields with awk Post 302992223 by sayami00 on Thursday 23rd of February 2017 03:56:44 AM
Old 02-23-2017
Dear Don,
Please find my answer :
1) I have tried like this
Code:
egrep "0221|09|ccc" test.unl  | awk  -F "|"  'maxvalue=="" || $3 > maxvalue { maxvalue=$3 } END { print "ccc|"maxvalue }'

With this I am providing unique value for fields 1,2 and 4 .

2 ) Yes , all the fields have common value .

3 ) Output order does not matter . In output , line having max third field have to be displayed .
Code:
0221|09|aaa| ,44.33

 

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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). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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