Linux下查看网速脚本

2015-11-26

使用方法:

./n1.sh eth0

cat n1.sh

#!/bin/bash
eth=$1
RXpre=$(cat /proc/net/dev | grep $eth | tr : " " | awk '{print $2}')
TXpre=$(cat /proc/net/dev | grep $eth | tr : " " | awk '{print $10}')
sleep 1
RXnext=$(cat /proc/net/dev | grep $eth | tr : " " | awk '{print $2}')
TXnext=$(cat /proc/net/dev | grep $eth | tr : " " | awk '{print $10}')
#clear
echo -e "\t RX `date +%k:%M:%S` TX"
RX=$((${RXnext}-${RXpre}))
TX=$((${TXnext}-${TXpre}))

if [[ $RX -lt 1024 ]];then
RX="${RX}B/s"
elif [[ $RX -gt 1048576 ]];then
RX=$(echo $RX | awk '{print $1/1048576 "MB/s"}')
else
RX=$(echo $RX | awk '{print $1/1024 "KB/s"}')
fi

if [[ $TX -lt 1024 ]];then
TX="${TX}B/s"
elif [[ $TX -gt 1048576 ]];then
TX=$(echo $TX | awk '{print $1/1048576 "MB/s"}')
else
TX=$(echo $TX | awk '{print $1/1024 "KB/s"}')
fi

echo -e "$eth \t $RX $TX "