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Top Forums Shell Programming and Scripting Concatenate two columns in a file Post 302912645 by RavinderSingh13 on Monday 11th of August 2014 06:59:23 AM
Old 08-11-2014
Hello,

Here is one more solution for same.

Code:
awk -F, '{$NF=$(NF-1) $NF}; {a=NF} {for(i=1;i<=NF;i++){if(i%a==0){ORS="\n"; print $i}  else {ORS=","; print $i}}}' OFS=","  filename

output will be as follows.

Code:
COL1,COL2,COL3,COL3COL4
1,A,B,C,CD
2,e,f,g,gh



Thanks,
R. Singh
 

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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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