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Full Discussion: Format diff output
Top Forums Shell Programming and Scripting Format diff output Post 302409575 by rwuerth on Thursday 1st of April 2010 01:59:01 PM
Old 04-01-2010
I just did this quick at the command line, and cut and paste when the results returned correctly. You're better off creating an awk command file and using the -f option to run these awk commands. i.e.

Code:
diff <diff options and files> | awk -f <awkfile>

I assumed that columns 1-3 always matched. If incorrect you can modify to your needs.

Code:
diff -b f1.txt f2.txt | awk '/^>/ { a[i++]=$0;maxi=i } /^</ { b[j++]=$0;maxj=j }

END{for (i=0;i<maxi;i++) { split(a[i],c); split(b[i],d);

if ( c[5] != d[5] ) 
  printf "%s %s column4 %s %s\n", c[2], c[3], d[5], c[5]
else
  if (c[6] != d[6] )
    printf "%s %s column5 %s %s\n", c[2], c[3], d[6], c[6]
  else
    if ("c[7]" != "d[7]" )
      printf "%s %s column6 %s %s\n", c[2], c[3], d[7], c[7]
} } '

 

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LEARN ABOUT LINUX

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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