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Top Forums Shell Programming and Scripting awk script to replace nth character with comma Post 302908039 by RudiC on Thursday 3rd of July 2014 06:26:05 AM
Old 07-03-2014
SriniShoo's question is yet to be answered and may necessitate an entirely different approach.
For a file with just your description in it, you can try
Code:
awk -F, '       {for (i=1; i<=NF; i++) if (length ($i) > 30) {
                         mx = split ($i, T, "")
                         j = 30; while (j>=1 && T[j]!=" ") j--; T[j]=","
                         $i = ""; for (j=1; j<=mx; j++) $i=$i T[j]
                        } 
                 print}  
        ' OFS="," file

 

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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). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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