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Top Forums UNIX for Dummies Questions & Answers Joining different columns from multiple files Post 302885226 by Yoda on Friday 24th of January 2014 09:13:41 AM
Old 01-24-2014
join command will work only with 2 files.

Use awk instead:
Code:
awk -F, '
        {
                A[$1 FS $2] = A[$1 FS $2] ? A[$1 FS $2] FS $NF : $NF
        }
        END {
                for ( k in A )
                        print k FS A[k]
        }
' file[1-4]

This User Gave Thanks to Yoda For This Post:
 

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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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