diff --git a/README.md b/README.md
index 82623e4..829f1aa 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 [![Codacy Badge](https://app.codacy.com/project/badge/Grade/5022a74d146f487581821fd1c3435437)](https://www.codacy.com/gh/LinuxSuRen/md-exec/dashboard?utm_source=github.com&utm_medium=referral&utm_content=LinuxSuRen/md-exec&utm_campaign=Badge_Grade)
 [![Codacy Badge](https://app.codacy.com/project/badge/Coverage/5022a74d146f487581821fd1c3435437)](https://www.codacy.com/gh/LinuxSuRen/md-exec/dashboard?utm_source=github.com&utm_medium=referral&utm_content=LinuxSuRen/md-exec&utm_campaign=Badge_Coverage)
+![GitHub All Releases](https://img.shields.io/github/downloads/linuxsuren/md-exec/total)
 
 ## Usage
 `md-exec` could exec the commands in the Markdown files.
diff --git a/cli/golang_runner.go b/cli/golang_runner.go
index 83164eb..e004bc0 100644
--- a/cli/golang_runner.go
+++ b/cli/golang_runner.go
@@ -25,21 +25,18 @@ func (s *GolangScript) Run() (err error) {
 	s.Content = strings.ReplaceAll(s.Content, "#!title: "+s.Title, "")
 
 	var shellFile string
-	if shellFile, err = writeAsShell(fmt.Sprintf(sampleGo, s.Content), s.Dir); err != nil {
-		fmt.Println(err)
-		return
-	}
+	if shellFile, err = writeAsShell(fmt.Sprintf(sampleGo, s.Content), s.Dir); err == nil {
+		goSourceFile := fmt.Sprintf("%s.go", shellFile)
+		os.Rename(shellFile, goSourceFile)
 
-	goSourceFile := fmt.Sprintf("%s.go", shellFile)
-	os.Rename(shellFile, goSourceFile)
+		if !s.KeepScripts {
+			defer func() {
+				_ = os.RemoveAll(goSourceFile)
+			}()
+		}
 
-	if !s.KeepScripts {
-		defer func() {
-			_ = os.RemoveAll(goSourceFile)
-		}()
+		err = s.Execer.RunCommandInDir("go", s.Dir, "run", path.Base(goSourceFile))
 	}
-
-	err = s.Execer.RunCommandInDir("go", s.Dir, "run", path.Base(goSourceFile))
 	return
 }
 
diff --git a/cli/python_runner.go b/cli/python_runner.go
index 420fbed..2d6a802 100644
--- a/cli/python_runner.go
+++ b/cli/python_runner.go
@@ -1,7 +1,6 @@
 package cli
 
 import (
-	"fmt"
 	"os"
 	"path"
 )
@@ -14,17 +13,15 @@ type PythonScript struct {
 // Run executes the script
 func (s *PythonScript) Run() (err error) {
 	var shellFile string
-	if shellFile, err = writeAsShell(s.Content, s.Dir); err != nil {
-		fmt.Println(err)
-		return
-	}
-	if !s.KeepScripts {
-		defer func() {
-			_ = os.RemoveAll(shellFile)
-		}()
-	}
+	if shellFile, err = writeAsShell(s.Content, s.Dir); err == nil {
+		if !s.KeepScripts {
+			defer func() {
+				_ = os.RemoveAll(shellFile)
+			}()
+		}
 
-	err = s.Execer.RunCommandInDir("python3", s.Dir, path.Base(shellFile))
+		err = s.Execer.RunCommandInDir("python3", s.Dir, path.Base(shellFile))
+	}
 	return
 }
 
diff --git a/cli/root.go b/cli/root.go
index 3e36c3b..e14cc7f 100644
--- a/cli/root.go
+++ b/cli/root.go
@@ -62,7 +62,9 @@ func (o *option) runE(cmd *cobra.Command, args []string) (err error) {
 
 	if scriptRunners.Size() > 1 {
 		for {
-			err = o.executeScripts(scriptRunners)
+			if err = o.executeScripts(scriptRunners); err != nil {
+				fmt.Fprintln(cmd.ErrOrStderr(), err.Error())
+			}
 
 			if !o.loop {
 				break
diff --git a/cli/root_test.go b/cli/root_test.go
index 95a02b6..bfb6f87 100644
--- a/cli/root_test.go
+++ b/cli/root_test.go
@@ -40,3 +40,15 @@ func TestNewRootCommand(t *testing.T) {
 		})
 	}
 }
+
+func TestParseMarkdownRUnner(t *testing.T) {
+	opt := &option{}
+	runners, err := opt.parseMarkdownRunner("../README.md")
+	if assert.Nil(t, err) {
+		assert.True(t, len(runners) > 0)
+		assert.NotNil(t, runners.GetRunner("Variable Input Hello World"))
+		assert.NotNil(t, runners.GetRunner("Python Hello World"))
+		assert.NotNil(t, runners.GetRunner("Run long time"))
+		assert.NotNil(t, runners.GetRunner("Golang Hello World"))
+	}
+}
diff --git a/cli/shell_runner.go b/cli/shell_runner.go
index ab5d8f9..6c5278f 100644
--- a/cli/shell_runner.go
+++ b/cli/shell_runner.go
@@ -1,14 +1,14 @@
 package cli
 
 import (
-	"fmt"
-	"github.com/linuxsuren/http-downloader/pkg/installer"
 	"io"
 	"os"
 	"path"
 	"regexp"
 	"strings"
 
+	"github.com/linuxsuren/http-downloader/pkg/installer"
+
 	"github.com/AlecAivazis/survey/v2"
 )
 
@@ -60,27 +60,25 @@ func (s *ShellScript) Run() (err error) {
 
 func (s *ShellScript) runCmdLine(cmdLine, contextDir string, keepScripts bool) (err error) {
 	var shellFile string
-	if shellFile, err = writeAsShell(cmdLine, contextDir); err != nil {
-		fmt.Println(err)
-		return
-	}
-	if !keepScripts {
-		defer func() {
-			_ = os.RemoveAll(shellFile)
-		}()
-	}
+	if shellFile, err = writeAsShell(cmdLine, contextDir); err == nil {
+		if !keepScripts {
+			defer func() {
+				_ = os.RemoveAll(shellFile)
+			}()
+		}
 
-	if s.ShellType == "shell" || s.ShellType == "" {
-		s.ShellType = "bash"
-	}
+		if s.ShellType == "shell" || s.ShellType == "" {
+			s.ShellType = "bash"
+		}
 
-	is := installer.Installer{
-		Provider: "github",
-	}
-	if err = is.CheckDepAndInstall(map[string]string{
-		s.ShellType: s.ShellType,
-	}); err == nil {
-		err = s.Execer.RunCommandInDir(s.ShellType, contextDir, path.Base(shellFile))
+		is := installer.Installer{
+			Provider: "github",
+		}
+		if err = is.CheckDepAndInstall(map[string]string{
+			s.ShellType: s.ShellType,
+		}); err == nil {
+			err = s.Execer.RunCommandInDir(s.ShellType, contextDir, path.Base(shellFile))
+		}
 	}
 	return
 }
diff --git a/cli/types_test.go b/cli/types_test.go
new file mode 100644
index 0000000..065a4be
--- /dev/null
+++ b/cli/types_test.go
@@ -0,0 +1,22 @@
+package cli
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestScriptRunners(t *testing.T) {
+	runners := ScriptRunners{}
+	assert.Equal(t, 0, runners.Size())
+	assert.Nil(t, runners.GetRunner("fake"))
+	assert.Equal(t, []string{}, runners.GetTitles())
+
+	runners = NewScriptRunners()
+	quitRunner := runners.GetRunner("Quit")
+	if assert.NotNil(t, quitRunner) {
+		assert.Equal(t, "Quit", quitRunner.GetTitle())
+		assert.Nil(t, quitRunner.Run())
+	}
+	assert.Equal(t, []string{"Quit"}, runners.GetTitles())
+}