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Top Forums Shell Programming and Scripting awk to comppare two files using rwo fields Post 302982598 by cmccabe on Friday 30th of September 2016 01:54:01 PM
Old 09-30-2016
Yes that was a typo and should be chr13. I am not sure what you are asking in question two but 20189546 could be in a different position and so in that case only one field is being compared, as you pointed out. Thank you Smilie.

I think I need something more like:
Code:
awk 'NR==FNR{f2[$2]=f3[$3]=$4;next}{k=$2; suf=((k in f2)?f2[k]:((k in f3)?f3[k]:"-"));$2=k "\t" suf}1' file{1,2}


Last edited by cmccabe; 09-30-2016 at 02:57 PM.. Reason: added details
 

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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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