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Full Discussion: Split columns
Top Forums Shell Programming and Scripting Split columns Post 302485047 by EAGL€ on Tuesday 4th of January 2011 04:39:16 AM
Old 01-04-2011
Quote:
Originally Posted by Scrutinizer
Code:
awk 'p!=$1{i=1;p=$1} {A[i++]=A[i]$0 FS} i>m{m=i} END{for(i=1;i<=m-1;i++)print A[i]}' infile

Hello Scrutinizer,

I would like to find out how this awk array works. I only need to learn what initial values the code will have, then i can complete the rest of the process, so could you correct me if im wrong:

P=0, i=0, m=0
0 != "CR124" {i=1,P="CR124"}
{A[2]=A[1]"CR124 1320" FS} ## Here what is the value of array A[1] ??##
2>0{m=2}
END {for(i=1,1<=1;i=2) print A[2]}

Or could you give the result in a matrix form, if would appreciate it..

Thanks in advance

Last edited by EAGL€; 01-04-2011 at 06:00 AM..
 

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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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