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Full Discussion: Awk is killing me.
Top Forums Shell Programming and Scripting Awk is killing me. Post 302562916 by yazu on Sunday 9th of October 2011 12:36:40 AM
Old 10-09-2011
A sketch. If you don't have too many flavors:
Code:
cat INPUTFILE
0,21
0,22
3,29
0,23
2,17
1,41
0,24
3,30
3,31
3,32
2,18
2,19

awk -F, '{ print $2 > $1 }' INPUTFILE

# GNU sed  Change to literal tabs and -e ':a' -e '...' for an old one.
paste [0-9]* | sed  ':a s!\t\t!\t0\t!; ta'  
21	41	17	29
22	0	18	30
23	0	19	31
24	0	0	32

===

I don't see any easy way to do it with awk only. It would be easy but awkward with Perl. Python or Ruby or even Javascript are better.

Last edited by yazu; 10-09-2011 at 01:50 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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