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Full Discussion: unique random numbers awk
Top Forums Shell Programming and Scripting unique random numbers awk Post 302672739 by Chubler_XL on Monday 16th of July 2012 11:28:35 PM
Old 07-17-2012
Try this:

Code:
gawk -F"," 'BEGIN { srand(); for (i = 1; i <= 30; i++) { v=int(36 * rand()+1); if(v in p) i-- ; else { printf("%s AM329_%04d\n",$0,v); p[v] }}}' OFS=, AM329_hole_names.csv

 

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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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