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Full Discussion: awk to calculate fields only if match is found
Top Forums Shell Programming and Scripting awk to calculate fields only if match is found Post 302973799 by Don Cragun on Saturday 21st of May 2016 07:41:19 PM
Old 05-21-2016
Maybe something like:
Code:
awk '
FNR == NR {
	a[$5]
	next
}
$5 in a {
	last6[$5] = $6
	sum7[$5] += $7
}
END {	for(i in last6)
		print i, last6[i], sum7[i]
}' file[12]

will do what you want, producing the output:
Code:
A2M1 3 385
A2M 2 240

(Note that doing it this way the order of the output lines is random.)

And, as always, if you want to try this on a Solaris/SunOS system, change awk to /usr/xpg4/bin/awk or nawk.
This User Gave Thanks to Don Cragun For This Post:
cmccabe
 

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LEARN ABOUT CENTOS

igawk

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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