最近需要做一个实时统计网络情况并统计误包率的脚本，下面是StackExchange上的一个剽窃，虽然不完全满足，但只可以输出一些信息

#!/bin/bashhost=$1if [ -z $host ]; then    echo "Usage: `basename $0` [HOST]"    exit 1fiwhile :; do    result=`ping -W 1 -c 1 $host | grep 'bytes from '`    if [ $? -gt 0 ]; then        echo -e "`date +'%Y/%m/%d %H:%M:%S'` - host $host is \033[0;31mdown\033[0m"    else         echo -e "`date +'%Y/%m/%d %H:%M:%S'` - host $host is \033[0;32mok\033[0m -`echo $result | cut -d ':' -f 2`"        sleep 1 # avoid ping rain    fidone

 

ping google.com | awk '{ sent=NR-1; received+=/^.*(time=.+ ms).*$/; loss=0; } { if (sent>0) loss=100-((received/sent)*100) } { print $0; printf "sent:%d received:%d loss:%d%%\n", sent, received, loss; }'

 

ping google.com | awk '{ sent=NR-1; received+=/^.*(time=.+ ms).*$/; loss=0; } { if (sent>0) loss=100-((received/sent)*100) } { printf "sent:%d received:%d loss:%d%%\n", sent, received, loss }'

 

ping ... | sed -n -e 's/.*\(100% packet loss\).*/\1/p' \                  -e 's_.*min/avg/max = [0-9]*/\([0-9]*\)/[0-9]*.*_\1_p'

 统计每一帧的错误率

#!/bin/bash#=== PARAMETERS change them here# add ip / hostname separated by while spaceHost="www.baidu.com"# no ping requestCOUNT=1      #=== Local vars (do not change them)# Cron-friendly: Automaticaly change directory to the current onecd $(dirname "$0")      # Current script filenameSCRIPTNAME=$(basename "$0")      # Current date and timetoday=$(date '+%Y-%m-%d')currtime=$(date '+%H:%M:%S')      #=== Main scriptwhile :do    msg=$(ping -c $COUNT $Host | grep 'loss')    echo -e "`date +'%Y/%m/%d %H:%M:%S'` ($Host 64Bytes) $msg" #>> plwatch.txtdone

 

结果