#!/bin/sh
PATH=/bin:/usr/bin:/sbin:/usr/sbin

[ -z "$1" ] && exit 1
IF=`ifconfig $1 2>/dev/null`
[ -z "$IF" ] && exit 1

LINE1=`echo "$IF" | grep "RX bytes:" | sed -n -re "s/.*RX bytes:([0-9]+).*/\1/p"`
LINE2=`echo "$IF" | grep "TX bytes:" | sed -n -re "s/.*TX bytes:([0-9]+).*/\1/p"`
LINE3=`uptime`
LINE4=`hostname`

echo $LINE1
echo $LINE2
echo $LINE3
echo $LINE4

exit 0