Linux-获取Linux系统的网络流量信息

https://serverfault.com/questions/533513/how-to-get-tx-rx-bytes-without-ifconfig

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cat /proc/net/dev

    Inter-|   Receive                                                |  Transmit
     face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed

    lo:    29846937   129576     0    0    0     0          0       0 29846937   129576     0    0    0     0       0          0
 wlan0:    9467393340 8027251    0    0    0     0          0       0 2559312961 5896509    0    0    0     0       0          0
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# cat /sys/class/net/eth0/statistics/rx_bytes
# cat /sys/class/net/eth0/statistics/rx_packets

# cat /sys/class/net/eth0/statistics/tx_packets
# cat /sys/class/net/eth0/statistics/tx_bytes
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# Useage sh speed.sh eth0
#!/bin/bash

ethn=$1

RX_pre=$(cat /sys/class/net/$ethn/statistics/rx_bytes)
TX_pre=$(cat /sys/class/net/$ethn/statistics/tx_bytes)

while true; do

    sleep 1
    RX_next=$(cat /sys/class/net/$ethn/statistics/rx_bytes)
    TX_next=$(cat /sys/class/net/$ethn/statistics/tx_bytes)

    # clear
    # echo -e "\t RX $(date +%k:%M:%S) TX"

    RX_delta=$((${RX_next} - ${RX_pre}))
    TX_delta=$((${TX_next} - ${TX_pre}))

    RX_pre=$RX_next
    TX_pre=$TX_next

    if [[ $RX_delta -lt 1024 ]]; then
        RX_delta="${RX_delta} B/s"
    elif [[ $RX_delta -lt 1048576 ]]; then
        RX_delta=$(echo $RX_delta | awk '{printf "%.2f KB/s", $1/1024}')
    else
        RX_delta=$(echo $RX_delta | awk '{printf "%.2f MB/s", $1/1048576}')
    fi

    if [[ $TX_delta -lt 1024 ]]; then
        TX_delta="${TX_delta} B/s"
    elif [[ $TX_delta -lt 1048576 ]]; then
        TX_delta=$(echo $TX_delta | awk '{printf "%.2f KB/s", $1/1024}')
    else
        TX_delta=$(echo $TX_delta | awk '{printf "%.2f MB/s", $1/1048576}')
    fi

    if [[ $RX_next -lt 1024 ]]; then
        RX_total="${RX_next} B"
    elif [[ $RX_next -lt 1048576 ]]; then
        RX_total=$(echo $RX_next | awk '{print $1/1024 " KB"}')
    elif [[ $RX_next -lt 1073741824 ]]; then
        RX_total=$(echo $RX_next | awk '{print $1/1048576 " MB"}')
    else
        RX_total=$(echo $RX_next | awk '{print $1/1073741824 " GB"}')
    fi

    if [[ $TX_next -lt 1024 ]]; then
        TX_total="${TX_next} B/s"
    elif [[ $TX_next -lt 1048576 ]]; then
        TX_total=$(echo $TX_next | awk '{print $1/1024 " KB"}')
    elif [[ $TX_next -lt 1073741824 ]]; then
        TX_total=$(echo $TX_next | awk '{print $1/1048576 " MB"}')
    else
        TX_total=$(echo $TX_next | awk '{print $1/1073741824 " GB"}')
    fi

    # echo -en "\033[2K\t$ethn \t $RX_total $RX_delta \t $TX_total $TX_delta\r"
    printf "\033[2K\t$ethn 接收：%11s %14s \t\t 发送：%11s %14s\r" "$RX_total" "$RX_delta" "$TX_total" "$TX_delta"

done

#Linux #网络
Linux-获取Linux系统的网络流量信息
https://dnacore.github.io/post/70044f3b-4fd7-4c8d-86dc-8eb8763ed333.html
作者
DNACore
发布于
2020年5月14日
更新于
2023年11月29日
许可协议