diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3aa1a11..b6d5f01 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 **2021-08-24**
 
+* v1.4.1 : 
+  * Added operation functions permission detection
+  * Added a prompt to the console for non-root users to run
 * v1.4.0 : 
   * Adjusted the front-end page display style
   * Adjusted static file path structure
diff --git a/Makefile b/Makefile
index bac1fb7..c6244c6 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 # @Author: github.com/plutobell
 # @Creation: 2020-08-10
 # @Last modification: 2021-08-24
-# @Version: 1.4.0
+# @Version: 1.4.1
 
 PROGRAM = pi-dashboard-go
 OUTPUT = build
diff --git a/README.md b/README.md
index 4155679..2b8c385 100644
--- a/README.md
+++ b/README.md
@@ -38,7 +38,7 @@ chmod +x pi-dashboard-go
 **Pi Dashboard Go** can be configured via command line parameters：
 
 ```bash
-Pi Dashboard Go version: v1.4.0
+Pi Dashboard Go version: v1.4.1
 Project address: https://github.com/plutobell/pi-dashboard-go
 
 Usage: Pi Dashboard Go [-auth USR:PSW] [-disk Paths] [-help]
diff --git a/config/config.go b/config/config.go
index 8937b5a..ca23f32 100644
--- a/config/config.go
+++ b/config/config.go
@@ -3,17 +3,19 @@
 // @Author: github.com/plutobell
 // @Creation: 2020-08-01
 // @Last modification: 2021-08-24
-// @Version: 1.4.0
+// @Version: 1.4.1
 
 package config
 
+import "os/user"
+
 const (
 	//PROJECT 项目地址
 	PROJECT string = "https://github.com/plutobell/pi-dashboard-go"
 	//AUTHOR 作者信息
 	AUTHOR string = "github:plutobell"
 	//VERSION 版本信息
-	VERSION string = "1.4.0"
+	VERSION string = "1.4.1"
 	//USERNAME 默认用户
 	USERNAME string = "pi"
 	//PASSWORD 默认密码
@@ -43,4 +45,6 @@ var (
 	SessionName string
 	// FileName 当前文件名
 	FileName string
+	// LinuxUserInfo 当前Linux用户信息
+	LinuxUserInfo *user.User
 )
diff --git a/device/device.go b/device/device.go
index 14cfdbd..3b63167 100644
--- a/device/device.go
+++ b/device/device.go
@@ -3,7 +3,7 @@
 // @Author: github.com/plutobell
 // @Creation: 2020-08-01
 // @Last modification: 2021-08-24
-// @Version: 1.4.0
+// @Version: 1.4.1
 
 package device
 
@@ -76,7 +76,6 @@ func Info() map[string]string {
 		"uptime":           "cat /proc/uptime | awk '{ print $1}'",
 		"login_user_count": "who -q | awk 'NR==2{print $2}'",
 		"load_average":     "cat /proc/loadavg | awk '{print $1,$2,$3,$4}'",
-		"current_user":     "whoami",
 		"hostname":         "cat /etc/hostname",
 		"os":               "uname -o",
 		"system":           "cat /etc/os-release | grep PRETTY_NAME=",
@@ -123,6 +122,8 @@ func Info() map[string]string {
 		device[k] = res
 	}
 
+	device["current_user"] = config.LinuxUserInfo.Username
+
 	cpuTemperature, _ := strconv.Atoi(device["cpu_temperature"])
 	device["uptime"] = resolveTime(device["uptime"])
 	device["hostname"] = strings.Replace(strings.Replace(device["hostname"], " ", "", -1), "\n", "", -1)
diff --git a/main.go b/main.go
index 95805cf..a8d5088 100644
--- a/main.go
+++ b/main.go
@@ -3,7 +3,7 @@
 // @Author: github.com/plutobell
 // @Creation: 2020-08-01
 // @Last modification: 2021-08-24
-// @Version: 1.4.0
+// @Version: 1.4.1
 
 package main
 
@@ -12,6 +12,7 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"os/user"
 	"path/filepath"
 	"strconv"
 	"strings"
@@ -36,6 +37,7 @@ func init() {
 
 	config.SessionName = "logged_in"
 	config.FileName = filepath.Base(os.Args[0])
+	config.LinuxUserInfo, _ = user.Current()
 
 	flag.Usage = usage
 }
diff --git a/server/assets/css/common.css b/server/assets/css/common.css
index 4a5a39b..ccdca8c 100644
--- a/server/assets/css/common.css
+++ b/server/assets/css/common.css
@@ -4,7 +4,7 @@
 @Author: github.com/plutobell
 @Creation: 2020-08-01
 @Last modification: 2021-08-24
-@Version: 1.4.0
+@Version: 1.4.1
 */
 
 ::-webkit-scrollbar {
diff --git a/server/assets/css/index.css b/server/assets/css/index.css
index 5b533f0..878ecce 100644
--- a/server/assets/css/index.css
+++ b/server/assets/css/index.css
@@ -4,7 +4,7 @@
 @Author: github.com/plutobell
 @Creation: 2020-08-01
 @Last modification: 2021-08-24
-@Version: 1.4.0
+@Version: 1.4.1
 */
 
 #loading{
diff --git a/server/assets/css/login.css b/server/assets/css/login.css
index 7a0bae4..55f65a8 100644
--- a/server/assets/css/login.css
+++ b/server/assets/css/login.css
@@ -4,7 +4,7 @@
 @Author: github.com/plutobell
 @Creation: 2020-08-01
 @Last modification: 2021-08-24
-@Version: 1.4.0
+@Version: 1.4.1
 */
 
 .box-radius {
diff --git a/server/assets/js/common.js b/server/assets/js/common.js
index 4676aae..e3a2abf 100644
--- a/server/assets/js/common.js
+++ b/server/assets/js/common.js
@@ -3,7 +3,7 @@
 // @Author: github.com/plutobell
 // @Creation: 2020-08-01
 // @Last modification: 2021-08-24
-// @Version: 1.4.0
+// @Version: 1.4.1
 
 window.oncontextmenu=function(){return false;}
 window.onkeydown = window.onkeyup = window.onkeypress = function (event) {
diff --git a/server/assets/js/index.js b/server/assets/js/index.js
index 2d47618..d2c62d8 100644
--- a/server/assets/js/index.js
+++ b/server/assets/js/index.js
@@ -3,7 +3,7 @@
 // @Author: github.com/plutobell
 // @Creation: 2020-08-01
 // @Last modification: 2021-08-24
-// @Version: 1.4.0
+// @Version: 1.4.1
 
 var new_version = ""
 var new_version_notes = ""
@@ -523,18 +523,22 @@ $("#reboot").click(function(){
     $.ajaxSetup(csrfAddToAjaxHeader());
     $.post('/api/operation?action=reboot', function(data){
         if (data.status == true) {
-            showModalBox("Reboot", "OK")
+            showModalBox("Reboot Device", "OK")
             $("#loading").show();
             unScroll();
             $("#reboot").css("pointer-events", "auto");
+        } else if (data.status == "NotRootUser") {
+            showModalBox("Reboot Device", '"Reboot Device" requires running Pi Dashboard Go as root user')
+            unScroll();
+            $("#reboot").css("pointer-events", "auto");
         } else {
-            showModalBox("Reboot", "Fail");
+            showModalBox("Reboot Device", "Unknown Error");
             $("#loading").show();
             unScroll();
             $("#reboot").css("pointer-events", "auto");
         }
     }).fail(function() {
-        showModalBox("Reboot", "Fail");
+        showModalBox("Reboot Device", "Request Error");
         $("#loading").show();
         unScroll();
         $("#reboot").css("pointer-events", "auto");
@@ -546,18 +550,22 @@ $("#shutdown").click(function(){
     $.ajaxSetup(csrfAddToAjaxHeader());
     $.post('/api/operation?action=shutdown', function(data){
         if (data.status == true) {
-            showModalBox("Shutdown", "OK");
+            showModalBox("Shutdown Device", "OK");
             $("#loading").show();
             unScroll();
             $("#shutdown").css("pointer-events", "auto");
+        } else if (data.status == "NotRootUser") {
+            showModalBox("Shutdown Device", '"Shutdown Device" requires running Pi Dashboard Go as root user')
+            unScroll();
+            $("#shutdown").css("pointer-events", "auto");
         } else {
-            showModalBox("Shutdown", "Fail");
+            showModalBox("Shutdown Device", "Unknown Error");
             $("#loading").show();
             unScroll();
             $("#shutdown").css("pointer-events", "auto");
         }
     }).fail(function() {
-        showModalBox("Shutdown", "Fail");
+        showModalBox("Shutdown Device", "Request Error");
         $("#loading").show();
         unScroll();
         $("#shutdown").css("pointer-events", "auto");
@@ -573,14 +581,19 @@ $("#dropcaches").click(function(){
             // $("#loading").show();
             // unScroll();
             $("#dropcaches").css("pointer-events", "auto");
+        } else if (data.status == "NotRootUser") {
+            showModalBox("Drop Caches", '"Drop Caches" requires running Pi Dashboard Go as root user')
+            // $("#loading").show();
+            // unScroll();
+            $("#dropcaches").css("pointer-events", "auto");
         } else {
-            showModalBox("Drop Caches", "Fail");
+            showModalBox("Drop Caches", "Unknown Error");
             // $("#loading").show();
             // unScroll();
             $("#dropcaches").css("pointer-events", "auto");
         }
     }).fail(function() {
-        showModalBox("Drop Caches", "Fail");
+        showModalBox("Drop Caches", "Request Error");
         // $("#loading").show();
         // unScroll();
         $("#dropcaches").css("pointer-events", "auto");
diff --git a/server/assets/js/login.js b/server/assets/js/login.js
index 42a7a3a..39c7674 100644
--- a/server/assets/js/login.js
+++ b/server/assets/js/login.js
@@ -3,7 +3,7 @@
 // @Author: github.com/plutobell
 // @Creation: 2020-08-01
 // @Last modification: 2021-08-24
-// @Version: 1.4.0
+// @Version: 1.4.1
 
 $("form").keyup(function(event){
     if(event.keyCode == 13){
diff --git a/server/assets/views/index.tmpl b/server/assets/views/index.tmpl
index 9b3f6f6..cccf3f4 100644
--- a/server/assets/views/index.tmpl
+++ b/server/assets/views/index.tmpl
@@ -336,6 +336,6 @@
 @Author: github.com/plutobell
 @Creation: 2020-08-01
 @Last modification: 2021-08-24
-@Version: 1.4.0 -->
+@Version: 1.4.1 -->
 </body>
 </html>
\ No newline at end of file
diff --git a/server/assets/views/login.tmpl b/server/assets/views/login.tmpl
index f927224..81a3826 100644
--- a/server/assets/views/login.tmpl
+++ b/server/assets/views/login.tmpl
@@ -80,6 +80,6 @@
 @Author: github.com/plutobell
 @Creation: 2020-08-01
 @Last modification: 2021-08-24
-@Version: 1.4.0 -->
+@Version: 1.4.1 -->
 </body>
 </html>
\ No newline at end of file
diff --git a/server/server.go b/server/server.go
index fd7c497..7c41528 100644
--- a/server/server.go
+++ b/server/server.go
@@ -3,7 +3,7 @@
 // @Author: github.com/plutobell
 // @Creation: 2020-08-01
 // @Last modification: 2021-08-24
-// @Version: 1.4.0
+// @Version: 1.4.1
 
 package server
 
@@ -100,6 +100,9 @@ func Run() {
 	// 启动服务
 	e.HideBanner = true
 	fmt.Println("⇨ Pi Dashboard Go v" + config.VERSION)
+	if isRootUser() != true {
+		fmt.Println("⇨ Some functions are unavailable to non-root users")
+	}
 	e.Logger.Fatal(e.Start(port))
 }
 
@@ -231,7 +234,7 @@ func API(c echo.Context) error {
 
 		if userName != username || isLogin != true {
 			status := map[string]string{
-				"result": "Unauthorized",
+				"status": "Unauthorized",
 			}
 			return c.JSON(http.StatusUnauthorized, status)
 		}
@@ -254,26 +257,36 @@ func API(c echo.Context) error {
 
 		if userName != username || isLogin != true {
 			status := map[string]string{
-				"result": "Unauthorized",
+				"status": "Unauthorized",
 			}
 			return c.JSON(http.StatusUnauthorized, status)
 		}
 
+		operation := c.QueryParam("action")
+
+		if operation != "checknewversion" && isRootUser() != true {
+			status := map[string]string{
+				"status": "NotRootUser",
+			}
+
+			return c.JSON(http.StatusOK, status)
+		}
+
 		status := map[string]bool{
 			"status": true,
 		}
 
-		switch operation := c.QueryParam("action"); {
-		case operation == "reboot":
+		switch operation {
+		case "reboot":
 			go device.Popen("reboot")
 			return c.JSON(http.StatusOK, status)
-		case operation == "shutdown":
+		case "shutdown":
 			go device.Popen("shutdown -h now")
 			return c.JSON(http.StatusOK, status)
-		case operation == "dropcaches":
+		case "dropcaches":
 			go device.Popen("echo 3 > /proc/sys/vm/drop_caches")
 			return c.JSON(http.StatusOK, status)
-		case operation == "checknewversion":
+		case "checknewversion":
 			nowVersion, releaseNotes, _ := getLatestVersionFromGitHub()
 			result := make(map[string]string)
 			if nowVersion > config.VERSION {
@@ -383,3 +396,13 @@ func getLatestVersionFromGitHub() (
 
 	return nowVersion, releaseNotes, downloadURL
 }
+
+func isRootUser() bool {
+	if config.LinuxUserInfo.Gid == "0" &&
+		config.LinuxUserInfo.Uid == "0" &&
+		config.LinuxUserInfo.Username == "root" {
+		return true
+	}
+
+	return false
+}
diff --git a/server/server_test.go b/server/server_test.go
index 94be0a5..6fa3202 100644
--- a/server/server_test.go
+++ b/server/server_test.go
@@ -38,3 +38,11 @@ func Test_getLatestVersionFromGitHub(t *testing.T) {
 		t.Error("Fail")
 	}
 }
+
+func Test_isRootUser(t *testing.T) {
+	if res := isRootUser(); res == true || res == false {
+		t.Log("Pass")
+	} else {
+		t.Error("Fail")
+	}
+}