diff --git a/README.md b/README.md
index 1360a64d3..40f5cafe4 100644
--- a/README.md
+++ b/README.md
@@ -19,21 +19,21 @@ USAGE:
    gopm [global options] command [command options] [arguments...]
 
 VERSION:
-   0.6.0.1211
+   0.6.1.0110
 
 COMMANDS:
-   get		fetch remote package(s) and dependencies to local repository
-   bin		download and link dependencies and build executable binary
-   gen		generate a gopmfile according current Go project
-   run		link dependencies and go run
-   build	link dependencies and go build
-   install	link dependencies and go install
-   help, h	Shows a list of commands or help for one command
-   
+   get      fetch remote package(s) and dependencies to local repository
+   bin      download and link dependencies and build executable binary
+   gen      generate a gopmfile according current Go project
+   run      link dependencies and go run
+   build link dependencies and go build
+   install  link dependencies and go install
+   help, h  Shows a list of commands or help for one command
+
 GLOBAL OPTIONS:
-   --noterm	disable color output
-   --version	print the version
-   --help, -h	show help
+   --noterm    disable color output
+   --version, -v  print the version
+   --help, -h     show help
 ```
 
 
diff --git a/cmd/build.go b/cmd/build.go
index 4e4feaf21..5461e586d 100644
--- a/cmd/build.go
+++ b/cmd/build.go
@@ -34,6 +34,7 @@ and execute 'go build'
 gopm build <go build commands>`,
 	Action: runBuild,
 	Flags: []cli.Flag{
+		cli.BoolFlag{"update, u", "update pakcage(s) and dependencies if any"},
 		cli.BoolFlag{"verbose, v", "show process details"},
 	},
 }
diff --git a/cmd/cmd.go b/cmd/cmd.go
index a2e608393..8a2d5d24a 100644
--- a/cmd/cmd.go
+++ b/cmd/cmd.go
@@ -81,3 +81,7 @@ func versionSuffix(value string) string {
 	}
 	return ""
 }
+
+func isSubpackage(rootPath, targetPath string) bool {
+	return strings.HasSuffix(workDir, rootPath) || strings.HasPrefix(rootPath, targetPath)
+}
diff --git a/cmd/get.go b/cmd/get.go
index 4eeb9a471..6a90b1aca 100644
--- a/cmd/get.go
+++ b/cmd/get.go
@@ -126,7 +126,7 @@ func getByGopmfile(ctx *cli.Context) {
 	for _, p := range imports {
 		p = doc.GetProjectPath(p)
 		// Skip subpackage(s) of current project.
-		if strings.HasSuffix(workDir, p) || strings.HasPrefix(p, targetPath) {
+		if isSubpackage(p, targetPath) {
 			continue
 		}
 		node := doc.NewNode(p, p, doc.BRANCH, "", true)
@@ -145,7 +145,6 @@ func getByGopmfile(ctx *cli.Context) {
 }
 
 func getByPath(ctx *cli.Context) {
-	return
 	nodes := make([]*doc.Node, 0, len(ctx.Args()))
 	for _, info := range ctx.Args() {
 		pkgPath := info
@@ -214,6 +213,10 @@ func downloadPackages(ctx *cli.Context, nodes []*doc.Node) {
 		n.RootPath = doc.GetProjectPath(n.ImportPath)
 		installPath := path.Join(installRepoPath, n.RootPath) + versionSuffix(n.Value)
 
+		if isSubpackage(n.RootPath, ".") {
+			continue
+		}
+
 		// Indicates whether need to download package again.
 		if n.IsFixed() && com.IsExist(installPath) {
 			n.IsGetDepsOnly = true
@@ -388,6 +391,8 @@ func updateByVcs(vcs, dirPath string) error {
 		if len(stderr) > 0 {
 			log.Error("", "Error: "+stderr)
 		}
+	case "svn":
+		log.Error("", "Error: not support svn yet")
 	}
 	return nil
 }
diff --git a/cmd/gopath.go b/cmd/gopath.go
index 124906e77..9a32398ee 100644
--- a/cmd/gopath.go
+++ b/cmd/gopath.go
@@ -101,7 +101,7 @@ func getChildPkgs(ctx *cli.Context, cpath string, ppkg *doc.Pkg, cachePkgs map[s
 				if pkgName != "" && strings.HasPrefix(pkg.ImportPath, pkgName) {
 					newPath = filepath.Join(curPath, strings.TrimPrefix(pkg.ImportPath, pkgName))
 				} else {
-					if !com.IsExist(newPath) {
+					if !com.IsExist(newPath) || ctx.Bool("update") {
 						node := doc.NewNode(pkg.ImportPath, pkg.ImportPath,
 							pkg.Type, pkg.Value, true)
 						nodes := []*doc.Node{node}
diff --git a/gopm.go b/gopm.go
index f0db2cd41..f58d1663a 100644
--- a/gopm.go
+++ b/gopm.go
@@ -52,11 +52,11 @@ func main() {
 	app.Version = APP_VER
 	app.Commands = []cli.Command{
 		cmd.CmdGet,
-		//cmd.CmdBin,
+		cmd.CmdBin,
 		cmd.CmdGen,
-		//cmd.CmdRun,
-		//cmd.CmdBuild,
-		//cmd.CmdInstall,
+		cmd.CmdRun,
+		cmd.CmdBuild,
+		cmd.CmdInstall,
 		//cmd.CmdUpdate,
 		//cmd.CmdTest,
 	}