:
##########################################################################
# Shellscript:	rand - return random number
# Version    :	0.2 (beta)
# Author     :	Heiner Steven (heiner.steven@odn.de)
# Date       :	09.02.95
# SCCS-Id.   :	$Id: rand,v 1.1.1.1 1999/06/15 19:29:05 heiner Exp $
##########################################################################
# Description
#	Uses the date and the process id to calculate a random number
# Changes
# 28.09.95 stv	Random numbers cannot be maxvalue+1 (0.2)
##########################################################################

PN=`basename $0`			# program name
VER='0.2 (beta)'

MaxRand=32766

Usage () {
    echo "$PN - return random number, $VER (stv '95)
usage: $PN [maxvalue]

Prints a random value (1 <= random <= maxvalue) to standard output. 
If no maximum value is specified, `expr $MaxRand + 1` is the default" >&2
    exit 1
}

Msg () {
    for i
    do echo "$PN: $i" >&2
    done
}

Fatal () { Msg "$@"; exit 1; }

while [ $# -gt 0 ]
do
    case "$1" in
					# Your flags here
	--)	shift; break;;
	-h)	Usage;;
	-*)	Usage;;
	*)	break;;			# First file name
    esac
    shift
done

if [ $# -gt 1 ]
then Usage
elif [ $# -eq 1 ]
then
    if expr $1 + 0 > /dev/null 2>&1
    then Max=$1
    else Fatal "illegal number: $1"
    fi
fi
: ${Max:=$MaxRand}			# Use default value 

set -- `date '+%H %M %S'`
[ $# -ne 3 ] && Fatal "could not invoke program date"

n=`expr $$ \* $1 \* $2 \+ $3`
exec expr \( $n % $Max \) + 1