diff --git a/release/install-tr-control-cn.sh b/release/install-tr-control-cn.sh
index d155710..56f9c71 100644
--- a/release/install-tr-control-cn.sh
+++ b/release/install-tr-control-cn.sh
@@ -3,7 +3,7 @@
 ARG1="$1"
 ROOT_FOLDER=""
 SCRIPT_NAME="$0"
-SCRIPT_VERSION="1.2.0"
+SCRIPT_VERSION="1.2.1"
 VERSION=""
 WEB_FOLDER=""
 ORG_INDEX_FILE="index.original.html"
@@ -22,6 +22,64 @@ SKIP_SEARCH=0
 USER=`whoami`
 AUTOINSTALL=0
 
+#==========================================================
+MSG_TR_WORK_FOLDER="当前 Transmission Web 目录为: "
+MSG_SPECIFIED_VERSION="您正在使用指定版本安装，版本："
+MSG_SEARCHING_TR_FOLDER="正在搜索 Transmission Web 目录..."
+MSG_THE_SPECIFIED_DIRECTORY_DOES_NOT_EXIST="指定的目录不存在，准备进行搜索，请稍候..."
+MSG_USE_WEB_HOME="使用 TRANSMISSION_WEB_HOME 变量: $TRANSMISSION_WEB_HOME"
+MSG_AVAILABLE="可用"
+MSG_TRY_SPECIFIED_VERSION="正在尝试指定版本"
+MSG_PACK_COPYING="正在复制安装包..."
+MSG_WEB_PATH_IS_MISSING="错误 : Transmisson WEB 目录不存在，请确认是否已安装 Transmisson 。"
+MSG_PACK_IS_EXIST=" 已存在，是否重新下载？（y/n）"
+MSG_SIKP_DOWNLOAD="\n跳过下载，正在准备安装"
+MSG_DOWNLOADING="正在下载 Transmission Web Control..."
+MSG_DOWNLOAD_COMPLETE="下载完成，正在准备安装..."
+MSG_DOWNLOAD_FAILED="安装包下载失败，请重试或尝试其他版本。"
+MSG_INSTALL_COMPLETE="Transmission Web Control 安装完成!"
+MSG_PACK_EXTRACTING="正在解压安装包..."
+MSG_PACK_CLEANING_UP="正在清理安装包..."
+MSG_DONE="安装脚本执行完成。如遇到问题请查看：https://github.com/ronggang/transmission-web-control/wiki "
+MSG_SETTING_PERMISSIONS="正在设置权限，大约需要一分钟 ..."
+MSG_BEGIN="开始"
+MSG_END="结束"
+MSG_MAIN_MENU="
+	欢迎使用 Transmission Web Control 中文安装脚本。
+	官方帮助文档：https://github.com/ronggang/transmission-web-control/wiki 
+	安装脚本版本：$SCRIPT_VERSION 
+
+	1. 安装最新的发布版本（release）；
+	2. 安装指定版本，可用于降级；
+	3. 恢复到官方UI；
+	4. 重新下载安装脚本（$SCRIPT_NAME）；
+	5. 检测 Transmission 是否已启动；
+	6. 指定安装目录；
+	9. 安装最新代码库中的内容（master）；
+	===================
+	0. 退出安装；
+
+	请输入对应的数字："
+MSG_INPUT_VERSION="请输入版本号（如：1.5.1）："
+MSG_INPUT_TR_FOLDER="请输入 Transmission Web 所在的目录（不包含web，如：/usr/share/transmission）："
+MSG_SPECIFIED_FOLDER="安装目录已指定为："
+MSG_INVALID_PATH="输入的路径无效。"
+MSG_MASTER_INSTALL_CONFIRM="最新代码可能包含未知错误，是否确认安装？ (y/n): "
+MSG_FIND_WEB_FOLDER_FROM_PROCESS="正在尝试从进程中识别 Transmission Web 目录..."
+MSG_FIND_WEB_FOLDER_FROM_PROCESS_FAILED=" × 识别失败，请确认 Transmission 已启动。"
+MSG_CHECK_TR_DAEMON="正在检测 Transmission 进程..."
+MSG_CHECK_TR_DAEMON_FAILED="在系统进程中没有找到 Transmission ，请确认是否已启动。"
+MSG_TRY_START_TR="是否尝试启动 Transmission ？（y/n）"
+MSG_TR_DAEMON_IS_STARTED="Transmission 已启动。"
+MSG_REVERTING_ORIGINAL_UI="正在恢复官方UI..."
+MSG_REVERT_COMPLETE="恢复完成，在浏览器中重新访问 http://ip:9091/ 或刷新即可查看官方UI。"
+MSG_ORIGINAL_UI_IS_MISSING="官方UI不存在。"
+MSG_DOWNLOADING_INSTALL_SCRIPT="正在重新下载安装脚本..."
+MSG_INSTALL_SCRIPT_DOWNLOAD_COMPLETE="下载完成，请重新运行安装脚本。"
+MSG_INSTALL_SCRIPT_DOWNLOAD_FAILED="安装脚本下载失败！"
+MSG_NON_ROOT_USER="当前非 root 用户，无法进行安装操作。"
+#==========================================================
+
 # 是否自动安装
 if [ "$ARG1" = "auto" ]; then
 	AUTOINSTALL=1
@@ -40,7 +98,7 @@ initValues() {
 
 	# 判断 ROOT_FOLDER 是否为一个有效的目录，如果是则表明传递了一个有效路径
 	if [ -d "$ROOT_FOLDER" ]; then
-		showLog "当前 Transmission Web 目录为: $ROOT_FOLDER/web"
+		showLog "$MSG_TR_WORK_FOLDER $ROOT_FOLDER/web"
 		INSTALL_TYPE=3
 		WEB_FOLDER="$ROOT_FOLDER/web"
 		SKIP_SEARCH=1
@@ -57,7 +115,7 @@ initValues() {
 		else
 			PACK_NAME="v$VERSION.tar.gz"
 		fi
-		showLog "您正在使用指定版本安装，版本：$VERSION"
+		showLog "$MSG_SPECIFIED_VERSION $VERSION"
 		
 		DOWNLOAD_URL="https://github.com/ronggang/transmission-web-control/archive/$PACK_NAME"
 	fi	
@@ -82,11 +140,11 @@ main() {
 # 查找Web目录
 findWebFolder() {
 	# 找出web ui 目录
-	showLog "正在搜索 Transmission Web 目录..."
+	showLog "$MSG_SEARCHING_TR_FOLDER"
 		
 	# 判断 TRANSMISSION_WEB_HOME 环境变量是否被定义，如果是，直接用这个变量的值
 	if [ $TRANSMISSION_WEB_HOME ]; then
-		showLog "使用 TRANSMISSION_WEB_HOME 变量: $TRANSMISSION_WEB_HOME"
+		showLog "$MSG_USE_WEB_HOME"
 		# 判断目录是否存在，如果不存在则创建 https://github.com/ronggang/transmission-web-control/issues/167
 		if [ ! -d "$TRANSMISSION_WEB_HOME" ]; then
          mkdir -p "$TRANSMISSION_WEB_HOME"
@@ -96,9 +154,9 @@ findWebFolder() {
 		if [ -d "$ROOT_FOLDER" -a -d "$ROOT_FOLDER/web" ]; then
 			WEB_FOLDER="$ROOT_FOLDER/web"
 			INSTALL_TYPE=1
-			showLog "$ROOT_FOLDER/web 可用."
+			showLog "$ROOT_FOLDER/web $MSG_AVAILABLE."
 		else
-			showLog "指定的目录不存在，准备进行搜索，请稍候..."
+			showLog "$MSG_THE_SPECIFIED_DIRECTORY_DOES_NOT_EXIST"
 			ROOT_FOLDER=`find / -name 'web' -type d 2>/dev/null| grep 'transmission/web' | sed 's/\/web$//g'`
 
 			if [ -d "$ROOT_FOLDER/web" ]; then
@@ -113,13 +171,13 @@ findWebFolder() {
 install() {
 	# 是否指定版本
 	if [ "$VERSION" != "" ]; then
-		showLog "正在尝试指定版本 $VERSION"
+		showLog "$MSG_TRY_SPECIFIED_VERSION $VERSION"
 		# 下载安装包
 		download
 		# 解压安装包
 		unpack
 
-		showLog "正在复制安装包..."
+		showLog "$MSG_PACK_COPYING"
 		# 复制文件到
 		cp -r "$TMP_FOLDER/transmission-web-control-$VERSION/src/." "$WEB_FOLDER/"
 		# 设置权限
@@ -137,7 +195,7 @@ install() {
 		# 解压缩包
 		unpack "web"
 		
-		showLog "正在复制安装包..."
+		showLog "$MSG_PACK_COPYING"
 		# 复制文件到
 		cp -r web "$ROOT_FOLDER"
 		# 设置权限
@@ -158,7 +216,7 @@ install() {
 	else
 		echo "##############################################"
 		echo "#"
-		echo "# 错误 : Transmisson WEB 目录不存在，请确认是否已安装 Transmisson 。"
+		echo "# $MSG_WEB_PATH_IS_MISSING"
 		echo "#"
 		echo "##############################################"
 	fi
@@ -171,7 +229,7 @@ download() {
 	# 判断安装包文件是否已存在
 	if [ -f "$PACK_NAME" ]; then
 		if [ $AUTOINSTALL = 0 ]; then
-			echo -n "\n$PACK_NAME 已存在，是否重新下载？（y/n）"
+			echo -n "\n$PACK_NAME $MSG_PACK_IS_EXIST"
 			read flag
 		else
 			flag="y"
@@ -180,19 +238,19 @@ download() {
 		if [ "$flag" = "y" -o "$flag" = "Y" ] ; then
 			rm "$PACK_NAME"
 		else
-			showLog "\n跳过下载，正在准备安装"
+			showLog "$MSG_SIKP_DOWNLOAD"
 			return 0
 		fi
 	fi
-	showLog "正在下载 Transmission Web Control..."
+	showLog "$MSG_DOWNLOADING"
 	echo ""
 	wget "$DOWNLOAD_URL" --no-check-certificate
 	# 判断是否下载成功
 	if [ $? -eq 0 ]; then
-		showLog "下载完成，正在准备安装..."
+		showLog "$MSG_DOWNLOAD_COMPLETE"
 		return 0
 	else 
-		showLog "安装包下载失败，请重试或尝试其他版本。"
+		showLog "$MSG_DOWNLOAD_FAILED"
 		end
 		exit 1
 	fi
@@ -200,7 +258,7 @@ download() {
 
 # 安装完成
 installed() {
-	showLog "Transmission Web Control 安装完成!"
+	showLog "$MSG_INSTALL_COMPLETE"
 }
 
 # 输出日志
@@ -218,7 +276,7 @@ showLog() {
 
 # 解压安装包
 unpack() {
-	showLog "正在解压安装包..."
+	showLog "$MSG_PACK_EXTRACTING"
 	if [ "$1" != "" ]; then
 		tar -xzf "$PACK_NAME" -C "$1"
 	else
@@ -237,7 +295,7 @@ unpack() {
 
 # 清除工作
 clear() {
-	showLog "正在清理安装包..."
+	showLog "$MSG_PACK_CLEANING_UP"
 	if [ -f "$PACK_NAME" ]; then
 		# 删除安装包
 		rm "$PACK_NAME"
@@ -248,14 +306,14 @@ clear() {
 		rm -rf "$TMP_FOLDER"
 	fi
 
-	showLog "安装脚本执行完成。如遇到问题请查看：https://github.com/ronggang/transmission-web-control/wiki "
+	showLog "$MSG_DONE"
 	end
 }
 
 # 设置权限
 setPermissions() {
 	folder="$1"
-	showLog "正在设置权限，大约需要一分钟 ..."
+	showLog "$MSG_SETTING_PERMISSIONS"
 	# 设置权限
 	find "$folder" -type d -exec chmod o+rx {} \;
 	find "$folder" -type f -exec chmod o+r {} \;
@@ -264,35 +322,19 @@ setPermissions() {
 # 开始
 begin() {
 	echo ""
-	showLog "== 开始 =="
+	showLog "== $MSG_BEGIN =="
 	showLog ""
 }
 
 # 结束
 end() {
-	showLog "== 结束 =="
+	showLog "== $MSG_END =="
 	echo ""
 }
 
 # 显示主菜单
 showMainMenu() {
-	msg="
-	欢迎使用 Transmission Web Control 中文安装脚本。
-	官方帮助文档：https://github.com/ronggang/transmission-web-control/wiki 
-	安装脚本版本：$SCRIPT_VERSION 
-
-	1. 安装最新的发布版本（release）；
-	2. 安装指定版本，可用于降级；
-	3. 恢复到官方UI；
-	4. 重新下载安装脚本（$SCRIPT_NAME）；
-	5. 检测 Transmission 是否已启动；
-	6. 指定安装目录；
-	9. 安装最新代码库中的内容（master）；
-	===================
-	0. 退出安装；
-
-	请输入对应的数字："
-	echo -n "$msg"
+	echo -n "$MSG_MAIN_MENU"
 	read flag
 	echo ""
 	case $flag in
@@ -301,7 +343,7 @@ showMainMenu() {
 			;;
 
 		2)
-			echo -n "请输入版本号（如：1.5.1）："
+			echo -n "$MSG_INPUT_VERSION"
 			read VERSION
 			main
 			;;
@@ -319,13 +361,13 @@ showMainMenu() {
 			;;
 
 		6)
-			echo -n "请输入 Transmission Web 所在的目录（不包含web，如：/usr/share/transmission）："
+			echo -n "$MSG_INPUT_TR_FOLDER"
 			read input
 			if [ -d "$input/web" ]; then
 				ROOT_FOLDER="$input"
-				showLog "安装目录已指定为：$input/web"
+				showLog "$MSG_SPECIFIED_FOLDER $input/web"
 			else
-				showLog "输入的路径无效。"
+				showLog "$MSG_INVALID_PATH"
 			fi
 			sleep 2
 			showMainMenu
@@ -333,7 +375,7 @@ showMainMenu() {
 		
 		# 下载最新的代码
 		9)
-			echo -n "最新代码可能包含未知错误，是否确认安装？ (y/n): "
+			echo -n "$MSG_MASTER_INSTALL_CONFIRM"
 			read input
 			if [ "$input" = "y" -o "$input" = "Y" ]; then
 				VERSION="master"
@@ -343,7 +385,7 @@ showMainMenu() {
 			fi
 			;;
 		*)
-			showLog "结束"
+			showLog "$MSG_END"
 			;;
 	esac
 }
@@ -359,7 +401,7 @@ getTransmissionPath() {
 	fi
 
 	if [ ! -d "$ROOT_FOLDER" ]; then
-		showLog "正在尝试从进程中识别 Transmission Web 目录..." "n"
+		showLog "$MSG_FIND_WEB_FOLDER_FROM_PROCESS" "n"
 		infos=`ps -ef | awk '/[t]ransmission-da/{print $8}'`
 		if [ "$infos" != "" ]; then
 			echo " √"
@@ -370,24 +412,24 @@ getTransmissionPath() {
 				ROOT_FOLDER=$path
 			fi
 		else
-			echo " × 识别失败，请确认 Transmission 已启动。"
+			echo "$MSG_FIND_WEB_FOLDER_FROM_PROCESS_FAILED"
 		fi
 	fi
 }
 
 # 检测 Transmission 进程是否存在
 checkTransmissionDaemon() {
-	showLog "正在检测 Transmission 进程..."
+	showLog "$MSG_CHECK_TR_DAEMON"
 	ps -C transmission-daemon
 	if [ $? -ne 0 ]; then
-		showLog "在系统进程中没有找到 Transmission ，请确认是否已启动。"
-		echo -n "是否尝试启动 Transmission ？（y/n）"
+		showLog "$MSG_CHECK_TR_DAEMON_FAILED"
+		echo -n "$MSG_TRY_START_TR"
 		read input
 		if [ "$input" = "y" -o "$input" = "Y" ] ; then
 			service transmission-daemon start
 		fi
 	else
-		showLog "Transmission 已启动。"
+		showLog "$MSG_TR_DAEMON_IS_STARTED"
 	fi
 	sleep 2
 	showMainMenu
@@ -398,7 +440,7 @@ revertOriginalUI() {
 	initValues
 	# 判断是否有官方的UI存在
 	if [ -f "$WEB_FOLDER/$ORG_INDEX_FILE" ]; then
-		showLog "正在恢复官方UI..."
+		showLog "$MSG_REVERTING_ORIGINAL_UI"
 		# 清除原来的内容
 		if [ -d "$WEB_FOLDER/tr-web-control" ]; then
 			rm -rf "$WEB_FOLDER/tr-web-control"
@@ -406,14 +448,14 @@ revertOriginalUI() {
 			rm "$WEB_FOLDER/index.html"
 			rm "$WEB_FOLDER/index.mobile.html"
 			mv "$WEB_FOLDER/$ORG_INDEX_FILE" "$WEB_FOLDER/$INDEX_FILE"
-			showLog "恢复完成，在浏览器中重新访问 http://ip:9091/ 或刷新即可查看官方UI。"
+			showLog "$MSG_REVERT_COMPLETE"
 		else
-			showLog "Transmission Web Control 目录不存在。"
+			showLog "$MSG_WEB_PATH_IS_MISSING"
 			sleep 2
 			showMainMenu
 		fi
 	else
-		showLog "官方UI不存在。"
+		showLog "$MSG_ORIGINAL_UI_IS_MISSING"
 		sleep 2
 		showMainMenu
 	fi
@@ -424,20 +466,20 @@ downloadInstallScript() {
 	if [ -f "$SCRIPT_NAME" ]; then
 		rm "$SCRIPT_NAME"
 	fi
-	showLog "正在重新下载安装脚本..."
+	showLog "$MSG_DOWNLOADING_INSTALL_SCRIPT"
 	wget "https://github.com/ronggang/transmission-web-control/raw/master/release/$SCRIPT_NAME" --no-check-certificate
 	# 判断是否下载成功
 	if [ $? -eq 0 ]; then
-		showLog "下载完成，请重新运行安装脚本。"
+		showLog "$MSG_INSTALL_SCRIPT_DOWNLOAD_COMPLETE"
 	else 
-		showLog "安装脚本下载失败！"
+		showLog "$MSG_INSTALL_SCRIPT_DOWNLOAD_FAILED"
 		sleep 2
 		showMainMenu
 	fi
 }
 
 if [ "$USER" != 'root' ]; then
-	showLog "当前非 root 用户，无法进行安装操作。"
+	showLog "$MSG_NON_ROOT_USER"
 	exit -1
 fi
 
diff --git a/release/install-tr-control.sh b/release/install-tr-control.sh
index 3c87b79..66222ab 100644
--- a/release/install-tr-control.sh
+++ b/release/install-tr-control.sh
@@ -1,8 +1,9 @@
-#!/bin/sh
-# 获取第一个参数做为目录
-ROOT_FOLDER="$1"
+#!/bin/bash
+# 获取第一个参数
+ARG1="$1"
+ROOT_FOLDER=""
 SCRIPT_NAME="$0"
-SCRIPT_VERSION="1.1.0"
+SCRIPT_VERSION="1.2.1"
 VERSION=""
 WEB_FOLDER=""
 ORG_INDEX_FILE="index.original.html"
@@ -18,6 +19,73 @@ DOWNLOAD_URL="$WEB_HOST$PACK_NAME"
 # 3 用户指定参数做为目录，如 sh install-tr-control.sh /usr/local/transmission/share/transmission
 INSTALL_TYPE=-1
 SKIP_SEARCH=0
+USER=`whoami`
+AUTOINSTALL=0
+
+#==========================================================
+MSG_TR_WORK_FOLDER="Transmission Web Path: "
+MSG_SPECIFIED_VERSION="You are using the specified version to install, version:"
+MSG_SEARCHING_TR_FOLDER="Searching Transmission Web Folder..."
+MSG_THE_SPECIFIED_DIRECTORY_DOES_NOT_EXIST="Folder not found. Will search the entire /. This will take a while..."
+MSG_USE_WEB_HOME="Use TRANSMISSION_WEB_HOME Variable: $TRANSMISSION_WEB_HOME"
+MSG_AVAILABLE="Available"
+MSG_TRY_SPECIFIED_VERSION="Attempting to specify version: "
+MSG_PACK_COPYING="Copying installation package..."
+MSG_WEB_PATH_IS_MISSING="ERROR : Transmisson WEB UI Folder is missing, Please confirm Transmisson is installed."
+MSG_PACK_IS_EXIST=" Already exist, whether to download again? (y/n)"
+MSG_SIKP_DOWNLOAD="\nSkip download, preparing to install"
+MSG_DOWNLOADING="Transmission Web Control Is Downloading..."
+MSG_DOWNLOAD_COMPLETE="Download completed, ready to install..."
+MSG_DOWNLOAD_FAILED="The installation package failed to download. Please try again or try another version."
+MSG_INSTALL_COMPLETE="Transmission Web Control Installation Completed!"
+MSG_PACK_EXTRACTING="Extracting installation package..."
+MSG_PACK_CLEANING_UP="Cleaning up the installation package..."
+MSG_DONE="Installation completed. Installation problems see：https://github.com/ronggang/transmission-web-control/wiki "
+MSG_SETTING_PERMISSIONS="Setting permissions, It takes about one minute ..."
+MSG_BEGIN="BEGIN"
+MSG_END="END"
+MSG_MAIN_MENU="
+	Welcome to the Transmission Web Control Installation Script.
+	Official help documentation: https://github.com/ronggang/transmission-web-control/wiki 
+	Installation script version: $SCRIPT_VERSION
+
+	1. Install the latest release.
+	2. Install the specified version.
+	3. Revert to the official UI.
+	4. Re-download the installation script.
+	5. Check if Transmission is started.
+	6. Input the Transmission Web directory.
+	9. Installing from 'master' Repository.
+	===================
+	0. Exit the installation;
+
+	Please enter the corresponding number: "
+MSG_INPUT_VERSION="Please enter the version number (e.g: 1.5.1):"
+MSG_INPUT_TR_FOLDER="Please enter the directory where the Transmission Web is located (without 'web', e.g /usr/share/transmission): "
+MSG_SPECIFIED_FOLDER="The installation directory is specified as: "
+MSG_INVALID_PATH="The input path is invalid."
+MSG_MASTER_INSTALL_CONFIRM="Do you confirm the installation? (y/n): "
+MSG_FIND_WEB_FOLDER_FROM_PROCESS="Attempting to identify transmission Web directory from process..."
+MSG_FIND_WEB_FOLDER_FROM_PROCESS_FAILED=" × Recognition failed, please confirm that transmission has started."
+MSG_CHECK_TR_DAEMON="Detecting the Transmission process..."
+MSG_CHECK_TR_DAEMON_FAILED="No Transmission was found in the system process. Please confirm that it is started."
+MSG_TRY_START_TR="Do you want to try to start transmission-daemon? (y/n) "
+MSG_TR_DAEMON_IS_STARTED="Transmission Is Started."
+MSG_REVERTING_ORIGINAL_UI="Restoring the official UI..."
+MSG_REVERT_COMPLETE="Restore complete, please re-enter http://ip:9091/ or refresh in the browser to view the official UI."
+MSG_ORIGINAL_UI_IS_MISSING="The official UI does not exist."
+MSG_DOWNLOADING_INSTALL_SCRIPT="Re-downloading the installation script..."
+MSG_INSTALL_SCRIPT_DOWNLOAD_COMPLETE="The download is complete. Please re-run the installation script."
+MSG_INSTALL_SCRIPT_DOWNLOAD_FAILED="Installation Script Download failed!"
+MSG_NON_ROOT_USER="Please use the root user to install."
+#==========================================================
+
+# 是否自动安装
+if [ "$ARG1" = "auto" ]; then
+	AUTOINSTALL=1
+else
+	ROOT_FOLDER=$ARG1
+fi
 
 initValues() {
 	# 判断临时目录是否存在，不存在则创建
@@ -25,9 +93,12 @@ initValues() {
 		mkdir -p "$TMP_FOLDER"
 	fi
 
+	# 获取 Transmission 目录
+	getTransmissionPath
+
 	# 判断 ROOT_FOLDER 是否为一个有效的目录，如果是则表明传递了一个有效路径
 	if [ -d "$ROOT_FOLDER" ]; then
-		showLog "Use parameters: $ROOT_FOLDER"
+		showLog "$MSG_TR_WORK_FOLDER $ROOT_FOLDER/web"
 		INSTALL_TYPE=3
 		WEB_FOLDER="$ROOT_FOLDER/web"
 		SKIP_SEARCH=1
@@ -35,8 +106,17 @@ initValues() {
 
 	# 判断是否指定了版本
 	if [ "$VERSION" != "" ]; then
-		showLog "You are using the specified version to install, version: $VERSION"
-		PACK_NAME="v$VERSION.tar.gz"
+		# 是否指定了 v
+		if [ "$VERSION" = "master" ]; then
+			PACK_NAME="$VERSION.tar.gz"
+		elif [ ${VERSION:0:1} = "v" ]; then
+			PACK_NAME="$VERSION.tar.gz"
+			VERSION=${VERSION:1}
+		else
+			PACK_NAME="v$VERSION.tar.gz"
+		fi
+		showLog "$MSG_SPECIFIED_VERSION $VERSION"
+		
 		DOWNLOAD_URL="https://github.com/ronggang/transmission-web-control/archive/$PACK_NAME"
 	fi	
 
@@ -60,31 +140,23 @@ main() {
 # 查找Web目录
 findWebFolder() {
 	# 找出web ui 目录
-	showLog "Searching Transmission Web Folder..."
-	# 指定一次当前系统的默认目录
-	# 用户如知道自己的 Transmission Web 所在的目录，直接修改这个值，以避免搜索所有目录
-	ROOT_FOLDER="/usr/local/transmission/share/transmission"
-	# Fedora 或 Debian 发行版的默认 ROOT_FOLDER 目录
-	if [ -f /etc/fedora-release ] || [ -f "/etc/debian_version" ]; then
-		ROOT_FOLDER="/usr/share/transmission"
-	fi
+	showLog "$MSG_SEARCHING_TR_FOLDER"
 		
 	# 判断 TRANSMISSION_WEB_HOME 环境变量是否被定义，如果是，直接用这个变量的值
 	if [ $TRANSMISSION_WEB_HOME ]; then
-		showLog "Use TRANSMISSION_WEB_HOME : $TRANSMISSION_WEB_HOME"
+		showLog "$MSG_USE_WEB_HOME"
 		# 判断目录是否存在，如果不存在则创建 https://github.com/ronggang/transmission-web-control/issues/167
 		if [ ! -d "$TRANSMISSION_WEB_HOME" ]; then
          mkdir -p "$TRANSMISSION_WEB_HOME"
       fi
 		INSTALL_TYPE=2
 	else
-		showLog "Looking for folder $ROOT_FOLDER/web"
-		if [ -d "$ROOT_FOLDER/web" ]; then
+		if [ -d "$ROOT_FOLDER" -a -d "$ROOT_FOLDER/web" ]; then
 			WEB_FOLDER="$ROOT_FOLDER/web"
 			INSTALL_TYPE=1
-			showLog "Folder found. Using it."
+			showLog "$ROOT_FOLDER/web $MSG_AVAILABLE."
 		else
-			showLog "Folder not found. Will search the entire /. This will take a while..."
+			showLog "$MSG_THE_SPECIFIED_DIRECTORY_DOES_NOT_EXIST"
 			ROOT_FOLDER=`find / -name 'web' -type d 2>/dev/null| grep 'transmission/web' | sed 's/\/web$//g'`
 
 			if [ -d "$ROOT_FOLDER/web" ]; then
@@ -99,13 +171,13 @@ findWebFolder() {
 install() {
 	# 是否指定版本
 	if [ "$VERSION" != "" ]; then
-		showLog "Attempting to specify version: $VERSION"
-		# 下载最新的安装包
+		showLog "$MSG_TRY_SPECIFIED_VERSION $VERSION"
+		# 下载安装包
 		download
-		# 
+		# 解压安装包
 		unpack
 
-		showLog "Copying installation package..."
+		showLog "$MSG_PACK_COPYING"
 		# 复制文件到
 		cp -r "$TMP_FOLDER/transmission-web-control-$VERSION/src/." "$WEB_FOLDER/"
 		# 设置权限
@@ -115,7 +187,7 @@ install() {
 
 	# 如果目录存在，则进行下载和更新动作
 	elif [ $INSTALL_TYPE = 1 -o $INSTALL_TYPE = 3 ]; then
-		# 下载最新的安装包
+		# 下载安装包
 		download
 		# 创建web文件夹，从 20171014 之后，打包文件不包含web目录，直接打包为src下所有文件
 		mkdir web
@@ -123,7 +195,7 @@ install() {
 		# 解压缩包
 		unpack "web"
 		
-		showLog "Copying installation package..."
+		showLog "$MSG_PACK_COPYING"
 		# 复制文件到
 		cp -r web "$ROOT_FOLDER"
 		# 设置权限
@@ -132,7 +204,7 @@ install() {
 		installed
 
 	elif [ $INSTALL_TYPE = 2 ]; then
-		# 下载最新的安装包
+		# 下载安装包
 		download
 		# 解压缩包
 		unpack "$TRANSMISSION_WEB_HOME"
@@ -144,35 +216,41 @@ install() {
 	else
 		echo "##############################################"
 		echo "#"
-		echo "# ERROR : Transmisson WEB UI Folder is missing, Please confirm Transmisson is installed."
+		echo "# $MSG_WEB_PATH_IS_MISSING"
 		echo "#"
 		echo "##############################################"
 	fi
 }
 
-# 下载最新的安装包
+# 下载安装包
 download() {
 	# 切换到临时目录
 	cd "$TMP_FOLDER"
 	# 判断安装包文件是否已存在
 	if [ -f "$PACK_NAME" ]; then
-		echo -n "\n$PACK_NAME Already exist, whether to download again? (y/n)"
-		read flag
+		if [ $AUTOINSTALL = 0 ]; then
+			echo -n "\n$PACK_NAME $MSG_PACK_IS_EXIST"
+			read flag
+		else
+			flag="y"
+		fi
+
 		if [ "$flag" = "y" -o "$flag" = "Y" ] ; then
 			rm "$PACK_NAME"
 		else
-			showLog "\nSkip download, preparing to install"
+			showLog "$MSG_SIKP_DOWNLOAD"
 			return 0
 		fi
 	fi
-	showLog "Downloading Transmission Web Control...\n"
+	showLog "$MSG_DOWNLOADING"
+	echo ""
 	wget "$DOWNLOAD_URL" --no-check-certificate
 	# 判断是否下载成功
 	if [ $? -eq 0 ]; then
-		showLog "Download completed, ready to install..."
+		showLog "$MSG_DOWNLOAD_COMPLETE"
 		return 0
 	else 
-		showLog "The installation package failed to download. Please try again or try another version."
+		showLog "$MSG_DOWNLOAD_FAILED"
 		end
 		exit 1
 	fi
@@ -180,18 +258,25 @@ download() {
 
 # 安装完成
 installed() {
-	showLog "Transmission Web Control Installation Completed!"
+	showLog "$MSG_INSTALL_COMPLETE"
 }
 
 # 输出日志
 showLog() {
 	TIME=`date "+%Y-%m-%d %H:%M:%S"`
-	echo "<< $TIME >> $1"
+
+	case $2 in
+		"n")
+			echo -n "<< $TIME >> $1" ;;
+		*)
+			echo "<< $TIME >> $1" ;;
+	esac
+	
 }
 
 # 解压安装包
 unpack() {
-	showLog "Decompressing installation package..."
+	showLog "$MSG_PACK_EXTRACTING"
 	if [ "$1" != "" ]; then
 		tar -xzf "$PACK_NAME" -C "$1"
 	else
@@ -210,7 +295,7 @@ unpack() {
 
 # 清除工作
 clear() {
-	showLog "Cleaning up the installation package..."
+	showLog "$MSG_PACK_CLEANING_UP"
 	if [ -f "$PACK_NAME" ]; then
 		# 删除安装包
 		rm "$PACK_NAME"
@@ -221,14 +306,14 @@ clear() {
 		rm -rf "$TMP_FOLDER"
 	fi
 
-	showLog "Installation completed. Installation problems see: https://github.com/ronggang/transmission-web-control/wiki "
+	showLog "$MSG_DONE"
 	end
 }
 
 # 设置权限
 setPermissions() {
 	folder="$1"
-	showLog "Setting permissions, It takes about one minute ..."
+	showLog "$MSG_SETTING_PERMISSIONS"
 	# 设置权限
 	find "$folder" -type d -exec chmod o+rx {} \;
 	find "$folder" -type f -exec chmod o+r {} \;
@@ -237,40 +322,28 @@ setPermissions() {
 # 开始
 begin() {
 	echo ""
-	showLog "== Beginning =="
+	showLog "== $MSG_BEGIN =="
 	showLog ""
 }
 
 # 结束
 end() {
-	showLog "== End ==\n"
+	showLog "== $MSG_END =="
+	echo ""
 }
 
 # 显示主菜单
 showMainMenu() {
-	msg="
-	Welcome to the Transmission Web Control Installation Script.
-	Official help documentation: https://github.com/ronggang/transmission-web-control/wiki 
-	Installation script version: $SCRIPT_VERSION\n
-	1. Install the latest release;
-	2. Install the specified version;
-	3. Revert to the official UI;
-	4. Re-download the installation script;
-	5. Check if Transmission is started;
-	6. Input the Transmission Web directory;
-	===================
-	0. Exit the installation;\n
-	Please enter the corresponding number: "
-	echo -n "$msg"
+	echo -n "$MSG_MAIN_MENU"
 	read flag
-	echo "\n"
+	echo ""
 	case $flag in
 		1)
 			main
 			;;
 
 		2)
-			echo -n "Please enter the version number (do not include 'v', such as: 1.5.1): "
+			echo -n "$MSG_INPUT_VERSION"
 			read VERSION
 			main
 			;;
@@ -288,32 +361,75 @@ showMainMenu() {
 			;;
 
 		6)
-			echo -n "Please enter the directory where the Transmission Web is located (without 'web', eg /usr/share/transmission): "
+			echo -n "$MSG_INPUT_TR_FOLDER"
 			read input
 			if [ -d "$input/web" ]; then
 				ROOT_FOLDER="$input"
-				showLog "The installation directory is specified as: $input/web"
+				showLog "$MSG_SPECIFIED_FOLDER $input/web"
 			else
-				showLog "The input path is invalid."
+				showLog "$MSG_INVALID_PATH"
 			fi
 			sleep 2
 			showMainMenu
 			;;
-
+		
+		# 下载最新的代码
+		9)
+			echo -n "$MSG_MASTER_INSTALL_CONFIRM"
+			read input
+			if [ "$input" = "y" -o "$input" = "Y" ]; then
+				VERSION="master"
+				main
+			else
+				showMainMenu
+			fi
+			;;
 		*)
-			showLog "END"
+			showLog "$MSG_END"
 			;;
 	esac
 }
 
+# 获取Tr所在的目录
+getTransmissionPath() {
+	# 指定一次当前系统的默认目录
+	# 用户如知道自己的 Transmission Web 所在的目录，直接修改这个值，以避免搜索所有目录
+	# ROOT_FOLDER="/usr/local/transmission/share/transmission"
+	# Fedora 或 Debian 发行版的默认 ROOT_FOLDER 目录
+	if [ -f "/etc/fedora-release" ] || [ -f "/etc/debian_version" ]; then
+		ROOT_FOLDER="/usr/share/transmission"
+	fi
+
+	if [ ! -d "$ROOT_FOLDER" ]; then
+		showLog "$MSG_FIND_WEB_FOLDER_FROM_PROCESS" "n"
+		infos=`ps -ef | awk '/[t]ransmission-da/{print $8}'`
+		if [ "$infos" != "" ]; then
+			echo " √"
+			search="bin/transmission-daemon"
+			replace="share/transmission"
+			path=${infos//$search/$replace}
+			if [ -d "$path" ]; then
+				ROOT_FOLDER=$path
+			fi
+		else
+			echo "$MSG_FIND_WEB_FOLDER_FROM_PROCESS_FAILED"
+		fi
+	fi
+}
+
 # 检测 Transmission 进程是否存在
 checkTransmissionDaemon() {
-	showLog "Detecting the Transmission process..."
+	showLog "$MSG_CHECK_TR_DAEMON"
 	ps -C transmission-daemon
 	if [ $? -ne 0 ]; then
-		showLog "No Transmission was found in the system process. Please confirm that it is started."
+		showLog "$MSG_CHECK_TR_DAEMON_FAILED"
+		echo -n "$MSG_TRY_START_TR"
+		read input
+		if [ "$input" = "y" -o "$input" = "Y" ] ; then
+			service transmission-daemon start
+		fi
 	else
-		showLog "Transmission is running."
+		showLog "$MSG_TR_DAEMON_IS_STARTED"
 	fi
 	sleep 2
 	showMainMenu
@@ -324,7 +440,7 @@ revertOriginalUI() {
 	initValues
 	# 判断是否有官方的UI存在
 	if [ -f "$WEB_FOLDER/$ORG_INDEX_FILE" ]; then
-		showLog "Restoring the official UI..."
+		showLog "$MSG_REVERTING_ORIGINAL_UI"
 		# 清除原来的内容
 		if [ -d "$WEB_FOLDER/tr-web-control" ]; then
 			rm -rf "$WEB_FOLDER/tr-web-control"
@@ -332,14 +448,14 @@ revertOriginalUI() {
 			rm "$WEB_FOLDER/index.html"
 			rm "$WEB_FOLDER/index.mobile.html"
 			mv "$WEB_FOLDER/$ORG_INDEX_FILE" "$WEB_FOLDER/$INDEX_FILE"
-			showLog "After the recovery is complete, visit http://ip:9091/ again in the browser to see the official UI."
+			showLog "$MSG_REVERT_COMPLETE"
 		else
-			showLog "Transmission Web Control Directory does not exist."
+			showLog "$MSG_WEB_PATH_IS_MISSING"
 			sleep 2
 			showMainMenu
 		fi
 	else
-		showLog "The official UI does not exist."
+		showLog "$MSG_ORIGINAL_UI_IS_MISSING"
 		sleep 2
 		showMainMenu
 	fi
@@ -350,17 +466,26 @@ downloadInstallScript() {
 	if [ -f "$SCRIPT_NAME" ]; then
 		rm "$SCRIPT_NAME"
 	fi
-	showLog "Re-downloading the installation script..."
+	showLog "$MSG_DOWNLOADING_INSTALL_SCRIPT"
 	wget "https://github.com/ronggang/transmission-web-control/raw/master/release/$SCRIPT_NAME" --no-check-certificate
 	# 判断是否下载成功
 	if [ $? -eq 0 ]; then
-		showLog "The download is complete. Please re-run the installation script."
+		showLog "$MSG_INSTALL_SCRIPT_DOWNLOAD_COMPLETE"
 	else 
-		showLog "Installation script failed to download!"
+		showLog "$MSG_INSTALL_SCRIPT_DOWNLOAD_FAILED"
 		sleep 2
 		showMainMenu
 	fi
 }
 
-# 执行
-showMainMenu
\ No newline at end of file
+if [ "$USER" != 'root' ]; then
+	showLog "$MSG_NON_ROOT_USER"
+	exit -1
+fi
+
+if [ $AUTOINSTALL = 1 ]; then
+	main
+else
+	# 执行
+	showMainMenu
+fi
\ No newline at end of file