Top Forums UNIX for Dummies Questions & Answers Compare two flat files and update one based on the values in the other Post 302553924 by kasan0 on Friday 9th of September 2011 07:44:20 AM
Compare two flat files and update one based on the values in the other

I'm a newbie to scripting and am trying to compare two files using awk.

The files are exactly the same dimensions. Where the first file has 0's I would like to create an updated version of the second file which has the corresponding elements set to zero also.

12345 1 2 0 0 2 2
12346 1 1 2 2 0 0
12347 0 0 0 0 1 2

12345 2 2 1 2 2 2
12346 1 2 2 2 2 2
12347 0 0 1 2 1 2

output required:
12345 2 2 0 0 2 2
12346 1 2 2 2 0 0
12347 0 0 0 0 1 2

Many thanks in advance!
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IGAWK(1)							 Utility Commands							  IGAWK(1)

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 ( Free Software Foundation Nov 3 1999 IGAWK(1)

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