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Top Forums Shell Programming and Scripting Delimit file based on character length using awk Post 302967383 by Prathmesh on Tuesday 23rd of February 2016 09:57:17 AM
Old 02-23-2016
Quote:
Originally Posted by RavinderSingh13
Hello Prathmesh,

Could you please try following and let me know if this helps you.
Code:
awk 'FNR==NR{A[++i]=$1;B[i]=$2;next} {for(j=1;j<=i;j++){if(B[j]){C=C?C OFS substr($0,A[j],B[j]):substr($0,A[j],B[j])} else {C=C?C OFS substr($0,A[j]):substr($0,A[j])}};print C;C=""}' FS="," fields OFS="|" main_file

Output will be as follows.
Code:
12|345|sda|231453
as|d76|0kj|ol62569
sd|asw|4g7|6gdf57

Thanks,
R. Singh
Thanks Ravinder. Your code is working fine. But, Can you please explain what it does exactly to understand it better.
 

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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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