98 lines
2.5 KiB
Bash
98 lines
2.5 KiB
Bash
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#!/bin/bash
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# 找到主要網路介面（自動偵測）
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INTERFACE=$(ip route | grep default | awk '{print $5}' | head -1)
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if [ -z "$INTERFACE" ]; then
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echo "找不到網路介面"
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exit 1
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fi
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echo "監控網路介面: $INTERFACE"
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echo "按 Enter 鍵停止並顯示最終統計"
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echo "----------------------------------------"
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# 取得初始值
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RX_FILE="/sys/class/net/$INTERFACE/statistics/rx_bytes"
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TX_FILE="/sys/class/net/$INTERFACE/statistics/tx_bytes"
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START_RX=$(cat $RX_FILE)
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START_TX=$(cat $TX_FILE)
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START_TIME=$(date)
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RX_PREV=$START_RX
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TX_PREV=$START_TX
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# 背景監控循環
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{
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while true; do
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sleep 1
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# 取得當前值
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RX_CURR=$(cat $RX_FILE)
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TX_CURR=$(cat $TX_FILE)
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# 計算速度（每秒差值）
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RX_SPEED=$((RX_CURR - RX_PREV))
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TX_SPEED=$((TX_CURR - TX_PREV))
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# 計算累積量
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RX_TOTAL=$((RX_CURR - START_RX))
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TX_TOTAL=$((TX_CURR - START_TX))
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TOTAL_CUMULATIVE=$((RX_TOTAL + TX_TOTAL))
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# 轉換成人類可讀格式
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RX_SPEED_H=$(numfmt --to=iec --suffix=B/s $RX_SPEED)
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TX_SPEED_H=$(numfmt --to=iec --suffix=B/s $TX_SPEED)
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RX_TOTAL_H=$(numfmt --to=iec --suffix=B $RX_TOTAL)
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TX_TOTAL_H=$(numfmt --to=iec --suffix=B $TX_TOTAL)
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TOTAL_H=$(numfmt --to=iec --suffix=B $TOTAL_CUMULATIVE)
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# 顯示即時資訊（使用 \r 覆蓋前一行）
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printf "\r速度 - 下載: %-10s 上傳: %-10s | 累積 - 下載: %-10s 上傳: %-10s 總計: %-10s" \
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"$RX_SPEED_H" "$TX_SPEED_H" "$RX_TOTAL_H" "$TX_TOTAL_H" "$TOTAL_H"
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# 更新前一次的值
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RX_PREV=$RX_CURR
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TX_PREV=$TX_CURR
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done
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} &
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# 記錄背景進程 PID
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MONITOR_PID=$!
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# 等待用戶按 Enter
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read -r
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# 停止背景監控
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kill $MONITOR_PID 2>/dev/null
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# 取得最終數據
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END_RX=$(cat $RX_FILE)
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END_TX=$(cat $TX_FILE)
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END_TIME=$(date)
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# 計算最終累積量
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FINAL_RX=$((END_RX - START_RX))
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FINAL_TX=$((END_TX - START_TX))
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FINAL_TOTAL=$((FINAL_RX + FINAL_TX))
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# 轉換格式
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FINAL_RX_H=$(numfmt --to=iec --suffix=B $FINAL_RX)
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FINAL_TX_H=$(numfmt --to=iec --suffix=B $FINAL_TX)
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FINAL_TOTAL_H=$(numfmt --to=iec --suffix=B $FINAL_TOTAL)
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# 顯示最終統計
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echo ""
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echo ""
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echo "============ 最終統計 ============"
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echo "監控時間:"
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echo " 開始: $START_TIME"
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echo " 結束: $END_TIME"
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echo ""
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echo "總累積頻寬使用量:"
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echo " 下載: $FINAL_RX_H"
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echo " 上傳: $FINAL_TX_H"
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echo " 總計: $FINAL_TOTAL_H"
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echo "================================="
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