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Full Discussion: Merging rows in awk
Top Forums Shell Programming and Scripting Merging rows in awk Post 302756371 by Don Cragun on Tuesday 15th of January 2013 06:22:58 PM
Old 01-15-2013
Try:
Code:
awk '
{       if(NF > m) m = NF
        if(!((1,$1) in o)) {
                o[1,$1] = $1
                oo[++oc] = $1
        }
        for(i = 2; i <= NF; i++) o[i,$1] = o[i,$1] $i
}
END {   for(i = 1; i <= oc; i++) {
                for(j = 1; j <= m; j++)
                        printf("%s%s", o[j, oo[i]], j == m ? "\n" : " ")
        }
}' input

On Solaris systems, use /usr/xpg4/bin/awk or nawk, instead of awk.
 

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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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