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Top Forums Shell Programming and Scripting How to cut by delimiter, and delimiter can be anything except numbers? Post 302605029 by alister on Tuesday 6th of March 2012 01:08:39 PM
Old 03-06-2012
Quote:
Originally Posted by tukuyomi
Someone, tell me what's wrong with this code, please?
Code:
awk -F'[^0-9]' '{s="";i=0;while(++i<=NF&&$i!="")s=s$i"\t"}$0=s' file

The while loop will abort at the first empty field because $i != "" evaluates to false. With the sample data provided and with the field separator you're using (any non-digit), the comparision is false for $1 and the body of the loop never executes.

Regards,
Alister
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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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