Matching fields between two files, repeated records Post: 303010894

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Top Forums UNIX for Beginners Questions & Answers Matching fields between two files, repeated records Post 303010894 by jvoot on Tuesday 9th of January 2018 01:47:49 PM

01-09-2018

Registered User

Quote:

Originally Posted by RudiC

Except for the formatting, how far would this get you:

Code:

awk '
NR == FNR       {q = $1 "," $2
                 $1 = $2 = ""
                 T[q "," ++C[q]] = $0
                 next
                }
                {q = $1 "," $3
                 X = q "," ++D[q]
                 printf "%s\t",  $0
                 if (X in T)    print T[X]
                 if ($3 == "?") print "  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -"
                }
' file1 file2

Please note, that does not quite accurately describe the situation - array elements are just overwritten when indices are encountered another time(s), and awk does this as any other programming language.

Thank you so much for this RudiC. After a quick test, initial indications are that that did the trick and I can run it through a printf to take care of the formatting.

I have not seen before the "," in your variable and then "T" array. I suspect this is giving an extra coordinate to the array to make it multi-dimensional but will do more research in AWK man. I really appreciate your help.

jvoot

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LEARN ABOUT DEBIAN

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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