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Full Discussion: Generating random numbers
Top Forums Shell Programming and Scripting Generating random numbers Post 302341516 by kshji on Thursday 6th of August 2009 05:23:53 AM
Old 08-06-2009
Code:
#!/bin/ksh
# or bash
cat file | while read a b
do
        echo -n "$a $b"
        ((max=b-a))
        ((n=RANDOM % max + a))
        echo -n " $n"
        ((n=RANDOM % max + a))
        echo -n " $n"
        ((n=RANDOM % max + a))
        echo " $n"
done

You can use shell services also in awk like - not so good as use rand. Shell using = lot of overheading:
Code:
     # define cmd
     cmd="echo $RANDOM"
     cmd | getline  random
     # close pipe
     close(cmd)

 

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TRACE-CMD-OPTIONS(1)													      TRACE-CMD-OPTIONS(1)

NAME
trace-cmd-options - list available options from trace-cmd plugins SYNOPSIS
trace-cmd options DESCRIPTION
The trace-cmd(1) options command will examine all the trace-cmd plugins that are used by trace-cmd report(1) and list them. SEE ALSO
trace-cmd(1), trace-cmd-record(1), trace-cmd-start(1), trace-cmd-stop(1), trace-cmd-extract(1), trace-cmd-reset(1), trace-cmd-split(1), trace-cmd-list(1), trace-cmd-listen(1) AUTHOR
Written by Steven Rostedt, <rostedt@goodmis.org[1]> RESOURCES
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git COPYING
Copyright (C) 2011 Red Hat, Inc. Free use of this software is granted under the terms of the GNU Public License (GPL). NOTES
1. rostedt@goodmis.org mailto:rostedt@goodmis.org 06/11/2014 TRACE-CMD-OPTIONS(1)
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