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Full Discussion: Joining fixed width files
Top Forums Shell Programming and Scripting Joining fixed width files Post 303012221 by rdrtx1 on Wednesday 31st of January 2018 07:14:21 PM
Old 01-31-2018
Code:
awk '
NR==FNR {c=0; for (i=4; i<=length; i+=2) a[substr($0,1,3),c++]=substr($0,i,2); next }
{
   sub(substr($0,1,7),substr($0,1,3));
   c=0;
   l=substr($0,1,3);
   for (i=4; i<=length; i+=2) l=l substr($0,i,2) a[substr($0,1,3),c++];
   print l;
}
' file2.txt file1.txt

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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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