Linux下统计高速网络中的流量

netpps.sh eth0

#!/bin/bashINTERVAL="1"  # update interval in secondsif [ -z "$1" ]; then        echo        echo usage: $0 [network-interface]        echo        echo e.g. $0 eth0        echo        echo shows packets-per-second        exitfiIF=$1while truedo        R1=`cat /sys/class/net/$1/statistics/rx_packets`        T1=`cat /sys/class/net/$1/statistics/tx_packets`        sleep $INTERVAL        R2=`cat /sys/class/net/$1/statistics/rx_packets`        T2=`cat /sys/class/net/$1/statistics/tx_packets`        TXPPS=`exPR $T2 - $T1`        RXPPS=`expr $R2 - $R1`        echo "TX $1: $TXPPS pkts/s RX $1: $RXPPS pkts/s"done

netspeed.sh eth0

#!/bin/bashINTERVAL="1"  # update interval in secondsif [ -z "$1" ]; then        echo        echo usage: $0 [network-interface]        echo        echo e.g. $0 eth0        echo        exitfiIF=$1while truedo        R1=`cat /sys/class/net/$1/statistics/rx_bytes`        T1=`cat /sys/class/net/$1/statistics/tx_bytes`        sleep $INTERVAL        R2=`cat /sys/class/net/$1/statistics/rx_bytes`        T2=`cat /sys/class/net/$1/statistics/tx_bytes`        TBPS=`expr $T2 - $T1`        RBPS=`expr $R2 - $R1`        TKBPS=`expr $TBPS / 1024`        RKBPS=`expr $RBPS / 1024`        echo "TX $1: $TKBPS kb/s RX $1: $RKBPS kb/s"done