测试多服务器网络速度的shell脚本

#!/bin/sh
#filename chk_speed.sh
#check network speed
#edit by www.jiaochengji.com

vpnlist="/var/shell/vpn.txt"
testfile="/speedtesting.zip"
result="/var/shell/result.txt"

echo "" > $result

cat $vpnlist | while read vpnserver
do
        url="http://$vpnserver$testfile"
        wget -o /tmp/vpn.log $url -O /dev/null

        speed=`cat /tmp/vpn.log | grep 'saved' | awk -F\ '{print $3}' | cut -c2-`
        unit=`cat /tmp/vpn.log | grep 'saved' | awk -F\ '{print $4}' | cut -c-2`

        if [ "$unit" == "MB" ]; then
                speed=`echo $speed*1024 | bc`
                unit="KB"
        fi

        echo "$url      $speed $unit/s" >> $result
        echo "$url      $speed $unit/s"
done

echo "VPN speed test finish,sort result display:"
cat $result | sort -k2 -rn