diff --git a/.gitignore b/.gitignore
index 4b867a0..4ddd203 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,4 +14,6 @@
 # Dependency directories (remove the comment below to include it)
 vendor/
 
-.idea/
\ No newline at end of file
+.idea/
+.vscode/
+.history/
diff --git a/README.md b/README.md
index 58ca929..9118aaa 100644
--- a/README.md
+++ b/README.md
@@ -13,4 +13,6 @@ gs release tag
 | pull      | 新建并拉取 go-spring 子项目      |
 | push      | 将修改推送到 go-spring 子项目    |
 | remove    | 本地移除 go-spring 子项目       |
-| release   | 本地所有子项目发布远程标签        |
\ No newline at end of file
+| release   | 本地所有子项目发布远程标签        |
+| repair    | 修复远程项目的链接               |
+| backup    | 备份本地项目文件               |
\ No newline at end of file
diff --git a/cmd/gs/backup.go b/cmd/gs/backup.go
new file mode 100644
index 0000000..5e22fa1
--- /dev/null
+++ b/cmd/gs/backup.go
@@ -0,0 +1,26 @@
+package gs
+
+import (
+	"os"
+
+	"github.com/go-spring/gs/internal"
+	"github.com/spf13/cobra"
+)
+
+var backpupCmd = &cobra.Command{
+	Use:     "backup",
+	Aliases: []string{"bak"},
+	Short:   "backup a project",
+	Args:    cobra.ExactArgs(0),
+	Run: func(cmd *cobra.Command, args []string) {
+		rootDir, err := os.Getwd()
+		if err != nil {
+			panic(err)
+		}
+		internal.Zip(rootDir)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(backpupCmd)
+}
diff --git a/cmd/gs/pull.go b/cmd/gs/pull.go
new file mode 100644
index 0000000..ef03e75
--- /dev/null
+++ b/cmd/gs/pull.go
@@ -0,0 +1,64 @@
+package gs
+
+import (
+	"os"
+
+	"github.com/go-spring/gs/internal"
+	"github.com/spf13/cobra"
+)
+
+var pullCmd = &cobra.Command{
+	Use:     "pull spring-*/starter-* [branch]",
+	Aliases: []string{"pl"},
+	Short:   "pull remote code",
+	Args:    cobra.ExactArgs(2),
+	Run: func(cmd *cobra.Command, args []string) {
+		projectName := args[0]
+		branch := args[1]
+		if branch == "" {
+			branch = "main"
+		}
+		rootDir, err := os.Getwd()
+		if err != nil {
+			panic(err)
+		}
+
+		backup, err := cmd.Flags().GetBool("backup")
+		if err != nil {
+			panic("illegal backup value,must")
+		}
+		if backup {
+			internal.Zip(rootDir)
+		}
+		pull(rootDir, projectName, branch)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(pullCmd)
+}
+
+// pull 拉取远程项目
+func pull(rootDir string, projectName string, branch string) {
+	_, dir, project := validProject(projectName)
+	internal.SafeStash(rootDir, func() {
+		remotes := internal.Remotes(rootDir)
+		if internal.ContainsString(remotes, project) < 0 {
+			add := false
+			defer func() {
+				if !add {
+					remove(rootDir, projectName)
+				}
+			}()
+			repository := internal.Add(rootDir, project, dir, branch)
+			projectXml.Add(internal.Project{
+				Name:   project,
+				Dir:    dir,
+				Url:    repository,
+				Branch: branch,
+			})
+			add = true
+		}
+		internal.Sync(rootDir, project, dir, branch)
+	})
+}
diff --git a/cmd/gs/push.go b/cmd/gs/push.go
new file mode 100644
index 0000000..f5b450d
--- /dev/null
+++ b/cmd/gs/push.go
@@ -0,0 +1,47 @@
+package gs
+
+import (
+	"os"
+
+	"github.com/go-spring/gs/internal"
+	"github.com/spf13/cobra"
+)
+
+var pushCmd = &cobra.Command{
+	Use:     "push spring-*/starter-*",
+	Aliases: []string{"ps"},
+	Short:   "push local code to remote repo",
+	Args:    cobra.ExactArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		projectName := args[0]
+		rootDir, err := os.Getwd()
+		if err != nil {
+			panic(err)
+		}
+		backup, err := cmd.Flags().GetBool("backup")
+		if err != nil {
+			panic("illegal backup value,must")
+		}
+		if backup {
+			internal.Zip(rootDir)
+		}
+		push(rootDir, projectName)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(pushCmd)
+}
+
+// push 推送远程项目
+func push(rootDir string, projectName string) {
+
+	_, dir, project := validProject(projectName)
+	internal.SafeStash(rootDir, func() {
+
+		// 将修改提交到远程项目，不需要往回合并
+		if p, ok := projectXml.Find(project); ok {
+			internal.Push(rootDir, project, dir, p.Branch)
+		}
+	})
+}
diff --git a/cmd/gs/release.go b/cmd/gs/release.go
new file mode 100644
index 0000000..55c0a0d
--- /dev/null
+++ b/cmd/gs/release.go
@@ -0,0 +1,126 @@
+package gs
+
+import (
+	"bufio"
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"github.com/go-spring/gs/internal"
+	"github.com/spf13/cobra"
+)
+
+var releaseCmd = &cobra.Command{
+	Use:     "release tag",
+	Aliases: []string{"rs"},
+	Short:   "release tag",
+	Args:    cobra.ExactArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		tag := args[0]
+		rootDir, err := os.Getwd()
+		if err != nil {
+			panic(err)
+		}
+		backup, err := cmd.Flags().GetBool("backup")
+		if err != nil {
+			panic("illegal backup value,must")
+		}
+		if backup {
+			internal.Zip(rootDir)
+		}
+		release(rootDir, tag)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(releaseCmd)
+}
+
+// release 发布所有远程项目
+func release(rootDir string, tag string) {
+	// tag := arg(2)
+	err := filepath.Walk(rootDir, func(walkFile string, _ os.FileInfo, err error) error {
+
+		if err != nil {
+			return err
+		}
+
+		if path.Base(walkFile) != "go.mod" {
+			return nil
+		}
+
+		fmt.Println(walkFile)
+		fileData, e0 := ioutil.ReadFile(walkFile)
+		if e0 != nil {
+			return nil
+		}
+
+		outBuf := bytes.NewBuffer(nil)
+		r := bufio.NewReader(strings.NewReader(string(fileData)))
+		for {
+			line, isPrefix, e1 := r.ReadLine()
+			if len(line) > 0 && e1 != nil {
+				panic(e1)
+			}
+			if isPrefix {
+				panic(errors.New("ReadLine returned prefix"))
+			}
+			if e1 != nil {
+				if e1 != io.EOF {
+					panic(err)
+				}
+				break
+			}
+			s := strings.TrimSpace(string(line))
+			if strings.HasPrefix(s, "github.com/go-spring/spring-") ||
+				strings.HasPrefix(s, "github.com/go-spring/starter-") {
+				index := strings.LastIndexByte(s, ' ')
+				if index <= 0 {
+					panic(errors.New(s))
+				}
+				b := append(line[:index+2], []byte(tag)...)
+				outBuf.Write(b)
+			} else {
+				outBuf.Write(line)
+			}
+			outBuf.WriteString("\n")
+		}
+
+		fmt.Println(outBuf.String())
+		return ioutil.WriteFile(walkFile, outBuf.Bytes(), os.ModePerm)
+	})
+
+	if err != nil {
+		panic(err)
+	}
+
+	// 提交代码更新
+	internal.Commit(rootDir, "publish "+tag)
+
+	// 遍历所有项目，推送远程更新
+	for _, project := range projectXml.Projects {
+		_, dir, _ := validProject(project.Name)
+		internal.Push(rootDir, project.Name, dir, project.Branch)
+	}
+
+	// 创建临时目录
+	now := time.Now().Format("20060102150405")
+	buildDir := path.Join(rootDir, "..", "go-spring-build-"+now)
+	err = os.MkdirAll(buildDir, os.ModePerm)
+	if err != nil {
+		panic(err)
+	}
+
+	// 遍历所有项目，推送远程标签
+	for _, project := range projectXml.Projects {
+		projectDir := internal.Clone(buildDir, project.Name, project.Url)
+		internal.Release(projectDir, tag)
+	}
+}
diff --git a/cmd/gs/remove.go b/cmd/gs/remove.go
new file mode 100644
index 0000000..3238a8f
--- /dev/null
+++ b/cmd/gs/remove.go
@@ -0,0 +1,53 @@
+package gs
+
+import (
+	"os"
+	"path"
+
+	"github.com/go-spring/gs/internal"
+	"github.com/spf13/cobra"
+)
+
+var removeCmd = &cobra.Command{
+	Use:     "remove spring-*/starter-*",
+	Aliases: []string{"pl"},
+	Short:   "pull remote code",
+	Args:    cobra.ExactArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		projectName := args[0]
+		rootDir, err := os.Getwd()
+		if err != nil {
+			panic(err)
+		}
+		backup, err := cmd.Flags().GetBool("backup")
+		if err != nil {
+			panic("illegal backup value,must")
+		}
+		if backup {
+			internal.Zip(rootDir)
+		}
+
+		remove(rootDir, projectName)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(removeCmd)
+}
+
+// remove 移除远程项目
+func remove(rootDir string, projectName string) {
+
+	_, dir, project := validProject(projectName)
+	internal.Remove(rootDir, project)
+
+	projectDir := path.Join(rootDir, dir)
+	_ = os.RemoveAll(projectDir)
+
+	if _, err := os.Stat(projectDir); !os.IsNotExist(err) {
+		panic(err)
+	}
+
+	projectXml.Remove(project)
+	internal.Remotes(rootDir)
+}
diff --git a/cmd/gs/repair.go b/cmd/gs/repair.go
new file mode 100644
index 0000000..eff7ea3
--- /dev/null
+++ b/cmd/gs/repair.go
@@ -0,0 +1,37 @@
+package gs
+
+import (
+	"os"
+
+	"github.com/go-spring/gs/internal"
+	"github.com/spf13/cobra"
+)
+
+var repairCmd = &cobra.Command{
+	Use:     "repair spring-*/starter-* [branch]",
+	Aliases: []string{"rp"},
+	Short:   "repair project dir",
+	Args:    cobra.ExactArgs(2),
+	Run: func(cmd *cobra.Command, args []string) {
+		projectName := args[0]
+		branch := args[1]
+		if branch == "" {
+			branch = "main"
+		}
+		rootDir, err := os.Getwd()
+		if err != nil {
+			panic(err)
+		}
+		repair(rootDir, projectName, branch)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(repairCmd)
+}
+
+// repair 修复远程项目的链接
+func repair(rootDir string, projectName string, branch string) {
+	_, dir, project := validProject(projectName)
+	internal.Add(rootDir, project, dir, branch)
+}
diff --git a/cmd/gs/root.go b/cmd/gs/root.go
new file mode 100644
index 0000000..6c191d2
--- /dev/null
+++ b/cmd/gs/root.go
@@ -0,0 +1,48 @@
+package gs
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"regexp"
+	"strings"
+
+	"github.com/go-spring/gs/internal"
+	"github.com/spf13/cobra"
+)
+
+// 配置文件
+var projectXml internal.ProjectXml
+var springProject = regexp.MustCompile("spring-.*")
+var starterProject = regexp.MustCompile("starter-.*")
+
+// validProject 项目名称是否有效，返回项目前缀、项目目录、项目名称
+func validProject(project string) (prefix string, dir string, _ string) {
+	if !springProject.MatchString(project) && !starterProject.MatchString(project) {
+		panic("error project " + project)
+	}
+	prefix = strings.Split(project, "-")[0]
+	return prefix, fmt.Sprintf("%s/%s", prefix, project), project
+}
+
+var rootCmd = &cobra.Command{
+	Use:   "gs",
+	Short: "gs - a simple CLI to transform and inspect strings",
+	Long: `gs is a super fancy CLI (kidding)
+   
+One can use gs to add or modfiy go spring project from the terminal`,
+	Run: func(cmd *cobra.Command, args []string) {
+	},
+}
+
+func init() {
+	log.SetFlags(log.Lshortfile)
+	rootCmd.PersistentFlags().BoolP("backup", "b", true, "backup project code.")
+}
+
+func Execute() {
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Fprintf(os.Stderr, "Whoops. There was an error while executing your CLI '%s'", err)
+		os.Exit(1)
+	}
+}
diff --git a/go.mod b/go.mod
index 62e1263..a66933a 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,5 @@
 module github.com/go-spring/gs
 
-go 1.12
+go 1.16
+
+require github.com/spf13/cobra v1.5.0
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..0d85248
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,10 @@
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
+github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spf13/cobra v1.5.0 h1:X+jTBEBqF0bHN+9cSMgmfuvv2VHJ9ezmFNf9Y/XstYU=
+github.com/spf13/cobra v1.5.0/go.mod h1:dWXEIy2H428czQCjInthrTRUg7yKbok+2Qi/yBIJoUM=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
diff --git a/main.go b/main.go
index 05d6cce..36d5bb4 100644
--- a/main.go
+++ b/main.go
@@ -1,282 +1,7 @@
 package main
 
-import (
-	"bufio"
-	"bytes"
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"log"
-	"os"
-	"path"
-	"path/filepath"
-	"regexp"
-	"strings"
-	"time"
-
-	"github.com/go-spring/gs/internal"
-)
-
-func init() {
-	log.SetFlags(log.Lshortfile)
-}
-
-// help 展示命令行用法
-const help = `command:
-  gs pull spring-*/starter-* [branch]
-  gs repair spring-*/starter-* [branch]
-  gs push spring-*/starter-*
-  gs remove spring-*/starter-*
-  gs release tag`
-
-var springProject = regexp.MustCompile("spring-.*")
-var starterProject = regexp.MustCompile("starter-.*")
-
-// validProject 项目名称是否有效，返回项目前缀、项目目录、项目名称
-func validProject(project string) (prefix string, dir string, _ string) {
-	if !springProject.MatchString(project) && !starterProject.MatchString(project) {
-		panic("error project " + project)
-	}
-	prefix = strings.Split(project, "-")[0]
-	return prefix, fmt.Sprintf("%s/%s", prefix, project), project
-}
-
-type Command struct {
-	backup bool // 是否需要备份
-	fn     func(rootDir string)
-}
-
-// commands 命令与处理函数的映射
-var commands = map[string]Command{
-	"pull":    {backup: true, fn: pull},    // 拉取单个远程项目
-	"repair":  {backup: false, fn: repair}, // 拉取单个远程项目
-	"push":    {backup: true, fn: push},    // 推送单个远程项目
-	"remove":  {backup: true, fn: remove},  // 移除单个远程项目
-	"release": {backup: true, fn: release}, // 发布所有远程项目
-	"backup":  {backup: true, fn: nil},     // 备份本地项目文件
-}
-
-// arg 获取命令行参数
-func arg(index int) string {
-	if len(os.Args) > index {
-		return os.Args[index]
-	}
-	panic("not enough arg")
-}
-
-// 配置文件
-var projectXml internal.ProjectXml
+import "github.com/go-spring/gs/cmd/gs"
 
 func main() {
-	fmt.Println(help)
-	defer func() { fmt.Println() }()
-
-	defer func() {
-		if r := recover(); r != nil {
-			log.Println(r)
-			os.Exit(-1)
-		}
-	}()
-
-	command := arg(1)
-	cmd, ok := commands[command]
-	if !ok {
-		panic("error command " + command)
-	}
-
-	// 获取工作目录
-	rootDir, err := os.Getwd()
-	if err != nil {
-		panic(err)
-	}
-
-	// 加载 project.xml 配置文件
-	projectFile := path.Join(rootDir, "project.xml")
-	err = projectXml.Read(projectFile)
-	if err != nil {
-		panic(err)
-	}
-
-	count := len(projectXml.Projects)
-	defer func() {
-		if count != len(projectXml.Projects) {
-			// 保存 project.xml 配置文件
-			err = projectXml.Save(projectFile)
-			if err != nil {
-				panic(err)
-			}
-		}
-	}()
-
-	fmt.Print(os.Args, " 输入 Yes 执行该命令: ")
-	input, _ := bufio.NewReader(os.Stdin).ReadString('\n')
-	if strings.TrimSpace(input) != "Yes" {
-		os.Exit(-1)
-	}
-
-	// 备份本地文件
-	if cmd.backup {
-		internal.Zip(rootDir)
-	}
-
-	// 执行命令
-	if cmd.fn != nil {
-		cmd.fn(rootDir)
-	}
-}
-
-// pull 拉取远程项目
-func pull(rootDir string) {
-
-	_, dir, project := validProject(arg(2))
-	internal.SafeStash(rootDir, func() {
-
-		branch := "main"
-		if len(os.Args) > 3 {
-			branch = os.Args[3]
-		}
-
-		remotes := internal.Remotes(rootDir)
-		if internal.ContainsString(remotes, project) < 0 {
-			add := false
-			defer func() {
-				if !add {
-					remove(rootDir)
-				}
-			}()
-			repository := internal.Add(rootDir, project, dir, branch)
-			projectXml.Add(internal.Project{
-				Name:   project,
-				Dir:    dir,
-				Url:    repository,
-				Branch: branch,
-			})
-			add = true
-		}
-
-		internal.Sync(rootDir, project, dir, branch)
-	})
-}
-
-// repair 修复远程项目的链接
-func repair(rootDir string) {
-	branch := "main"
-	if len(os.Args) > 3 {
-		branch = os.Args[3]
-	}
-	_, dir, project := validProject(arg(2))
-	internal.Add(rootDir, project, dir, branch)
-}
-
-// push 推送远程项目
-func push(rootDir string) {
-
-	_, dir, project := validProject(arg(2))
-	internal.SafeStash(rootDir, func() {
-
-		// 将修改提交到远程项目，不需要往回合并
-		if p, ok := projectXml.Find(project); ok {
-			internal.Push(rootDir, project, dir, p.Branch)
-		}
-	})
-}
-
-// remove 移除远程项目
-func remove(rootDir string) {
-
-	_, dir, project := validProject(arg(2))
-	internal.Remove(rootDir, project)
-
-	projectDir := path.Join(rootDir, dir)
-	_ = os.RemoveAll(projectDir)
-
-	if _, err := os.Stat(projectDir); !os.IsNotExist(err) {
-		panic(err)
-	}
-
-	projectXml.Remove(project)
-	internal.Remotes(rootDir)
-}
-
-// release 发布所有远程项目
-func release(rootDir string) {
-	tag := arg(2)
-	err := filepath.Walk(rootDir, func(walkFile string, _ os.FileInfo, err error) error {
-
-		if err != nil {
-			return err
-		}
-
-		if path.Base(walkFile) != "go.mod" {
-			return nil
-		}
-
-		fmt.Println(walkFile)
-		fileData, e0 := ioutil.ReadFile(walkFile)
-		if e0 != nil {
-			return nil
-		}
-
-		outBuf := bytes.NewBuffer(nil)
-		r := bufio.NewReader(strings.NewReader(string(fileData)))
-		for {
-			line, isPrefix, e1 := r.ReadLine()
-			if len(line) > 0 && e1 != nil {
-				panic(e1)
-			}
-			if isPrefix {
-				panic(errors.New("ReadLine returned prefix"))
-			}
-			if e1 != nil {
-				if e1 != io.EOF {
-					panic(err)
-				}
-				break
-			}
-			s := strings.TrimSpace(string(line))
-			if strings.HasPrefix(s, "github.com/go-spring/spring-") ||
-				strings.HasPrefix(s, "github.com/go-spring/starter-") {
-				index := strings.LastIndexByte(s, ' ')
-				if index <= 0 {
-					panic(errors.New(s))
-				}
-				b := append(line[:index+2], []byte(tag)...)
-				outBuf.Write(b)
-			} else {
-				outBuf.Write(line)
-			}
-			outBuf.WriteString("\n")
-		}
-
-		fmt.Println(outBuf.String())
-		return ioutil.WriteFile(walkFile, outBuf.Bytes(), os.ModePerm)
-	})
-
-	if err != nil {
-		panic(err)
-	}
-
-	// 提交代码更新
-	internal.Commit(rootDir, "publish "+tag)
-
-	// 遍历所有项目，推送远程更新
-	for _, project := range projectXml.Projects {
-		_, dir, _ := validProject(project.Name)
-		internal.Push(rootDir, project.Name, dir, project.Branch)
-	}
-
-	// 创建临时目录
-	now := time.Now().Format("20060102150405")
-	buildDir := path.Join(rootDir, "..", "go-spring-build-"+now)
-	err = os.MkdirAll(buildDir, os.ModePerm)
-	if err != nil {
-		panic(err)
-	}
-
-	// 遍历所有项目，推送远程标签
-	for _, project := range projectXml.Projects {
-		projectDir := internal.Clone(buildDir, project.Name, project.Url)
-		internal.Release(projectDir, tag)
-	}
+	gs.Execute()
 }