traff.sh
#!/bin/bash #网络监控 while [ "1" ] do 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})) RX=`expr ${RXnext} - ${RXpre}` #TX=$((${TXnext} - ${TXpre})) TX=`expr ${TXnext} - ${TXpre}` echo $RX exit 1 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 " done