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Full Discussion: Matching 2 files
Top Forums Shell Programming and Scripting Matching 2 files Post 302330696 by rakeshawasthi on Thursday 2nd of July 2009 04:45:53 AM
Old 07-02-2009
I had the solution ready, but wanted you to give it a try...
Code:
find_corresponding_least_val()
{
   cat file2 | grep "$_key" | awk '{
      if((val-$2) < _diff) {
         _diff=val-$2; args=$3
      }
      else
         _diff=val-$2
   }
      END {
         printf("%s\t%s\t%s\n", key, _diff, args)
   }' key="$_key" val="$_val"
}

while read line
do
   _key=`echo $line | awk '{print $1}`
   _val=`echo $line | awk '{print $2}`
   _args=`echo $line | awk '{print $3}`
   find_corresponding_least_val $_key $_val
done < file1

 

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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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