#!/bin/sh
usage(){
echo “Usage: $0 [-i INTERFACE] [-s INTERVAL] [-c COUNT]”
echo
echo “-i INTERFACE”
echo “    The interface to monitor, default is eth0.”
echo “-s INTERVAL”
echo “    The time to wait in seconds between measurements, default is 3 seconds.”
echo “-c COUNT”
echo “    The number of times to measure, default is 10 times.”
exit 3
}
readargs(){
while [ "$#" -gt 0 ] ; do
  case “$1″ in
   -i)
    if [ "$2" ] ; then
     interface=”$2″
     shift ; shift
    else
     echo “Missing a value for $1.”
     echo
     shift
     usage
    fi
   ;;
   -s)
    if [ "$2" ] ; then
     sleep=”$2″
     shift ; shift
    else
     echo “Missing a value for $1.”
     echo
     shift
     usage
    fi
   ;;
   -c)
    if [ "$2" ] ; then
     counter=”$2″
     shift ; shift
    else
     echo “Missing a value for $1.”
     echo
     shift
     usage
    fi
   ;;
   *)
    echo “Unknown option $1.”
    echo
    shift
    usage
   ;;
  esac
done
}
checkargs(){
if [ ! "$interface" ] ; then
  interface=”eth0″
fi
if [ ! "$sleep" ] ; then
  sleep=”3″
fi
if [ ! "$counter" ] ; then
  counter=”10″
fi
}
printrxbytes(){
/sbin/ifconfig “$interface” | grep “RX bytes” | cut -d: -f2 | awk ‘{ print $1 }'
}
printtxbytes(){
/sbin/ifconfig “$interface” | grep “TX bytes” | cut -d: -f3 | awk ‘{ print $1 }'
}
bytestohumanreadable(){
multiplier=”0″
number=”$1″
while [ "$number" -ge 1024 ] ; do
  multiplier=$(($multiplier+1))
  number=$(($number/1024))
done
case “$multiplier” in
  1)
   echo “$number Kb”
  ;;
  2)
   echo “$number Mb”
  ;;
  3)
   echo “$number Gb”
  ;;
  4)
   echo “$number Tb”
  ;;
  *)
   echo “$1 b”
  ;;
esac
}
 
printresults(){
while [ "$counter" -ge 0 ] ; do
  counter=$(($counter 主站蜘蛛池模板： 天祝| 襄樊市| 财经| 彰化市| 石林| 宁德市| 察雅县| 巨鹿县| 惠安县| 阜阳市| 宝山区| 敦煌市| 乐昌市| 正阳县| 天津市| 顺昌县| 塘沽区| 南京市| 通城县| 济宁市| 旺苍县| 南投市| 疏附县| 汾西县| 方山县| 临漳县| 广平县| 佛冈县| 大连市| 白朗县| 资兴市| 安福县| 乌兰浩特市| 望都县| 大兴区| 鹿邑县| 阳朔县| 田东县| 芜湖县| 潜山县| 象山县|