#!/usr/bin/env bash

WORDFILE="/usr/share/dict/words"
NUMWORDS=${1:-5}

#Number of lines in $WORDFILE
tL=`awk 'NF!=0 {++c} END {print c}' $WORDFILE`

for i in `seq $NUMWORDS`
do
	rnum=$(($RANDOM*$RANDOM))
	let "rnum %= $tL"
	sed -n "$rnum p" $WORDFILE
done