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基础脚本/获取本机的公网IP.sh

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+#!/bin/bash
+
+# 判断命令是否存在
+command_exists() {
+	command -v "$@" >/dev/null 2>&1
+}
+
+# 获取服务器的公网IP地址
+get_server_ip() {
+	local server_ip=""
+	local Network_Manage_Tool=""
+
+	if command_exists ip; then
+		Network_Manage_Tool="$(ip addr)"
+	elif command_exists ifconfig; then
+		Network_Manage_Tool="$(ifconfig)"
+	fi
+
+	server_ip=$(echo "$Network_Manage_Tool" | \
+		grep -oE "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}" | \
+		grep -vE "^192\.168|^172\.1[6-9]\.|^172\.2[0-9]\.|^172\.3[0-2]\.|^10\.|^127\.|^255\.|^0\." | \
+		head -n 1)
+
+	# 自动获取失败时，通过网站提供的 API 获取外网地址
+	if [ -z "$server_ip" ]; then
+		 server_ip="$(wget -qO- --no-check-certificate https://ipv4.icanhazip.com)"
+		 server_ip=$(curl -s https://myip.ipip.net | awk '{print$2}' | cut -d"：" -f2)
+	fi
+
+	echo "$server_ip"
+}
+
+get_server_ip