#!/bin/bash

获取当前操作系统类型

if [[ "$(uname)" == "Darwin" ]]; then # MacOS系统 network_interface=$(netstat -i | awk '{print $1}' | grep -v Name | head -n 1) up_data=$(netstat -ib | awk '/^'"$network_interface"'/ {print $7}') else # Linux系统 network_interface=$(ip -o link show | awk -F': ' '{print $2}' | grep -v lo | head -n 1) up_data=$(cat /sys/class/net/"$network_interface"/statistics/tx_bytes) fi

echo "$up_data"