diff --git a/README.md b/README.md
index 417ced47..9aba2412 100644
--- a/README.md
+++ b/README.md
@@ -26,9 +26,7 @@ context: 通过提供自由的模块，简洁的接口，动态的结构，让
 * detail[] option[] result[] append[]
 
 * Context Master Owner
-* Search() Action() Assert() Figure()
-
-
+* Search() Choice() Assert() Figure()
 
 ## 结构设计
 * 功能树
@@ -36,11 +34,9 @@ context: 通过提供自由的模块，简洁的接口，动态的结构，让
 * 消息树
 
 ## 分支管理
-* 0.1 ctx cli
-* 0.2 mdb tcp
-* 0.3 aaa ssh
-* 0.4 web nfs
-* 0.5 lex yac
+* 0.1 ctx cli aaa ssh
+* 0.2 nfs tcp mdb web
+* 0.3 lex yac log gdb
 
 ## 终端管理
 * 寻址 指令 事件 函数 资源
diff --git a/etc/go.snippets b/etc/go.snippets
index c8452b87..9cdde01e 100644
--- a/etc/go.snippets
+++ b/etc/go.snippets
@@ -39,6 +39,9 @@ snippet c
 	}
 
 	func (`Filename()` *`toupper(substitute(expand("%:t"), ".go", "", ""))`) Begin(m *ctx.Message, arg ...string) ctx.Server {
+		if `Filename()`.Context == Index {
+			Pulse = m
+		}
 		return `Filename()`
 	}
 
@@ -46,11 +49,20 @@ snippet c
 		return false
 	}
 
-	func (`Filename()` *`toupper(substitute(expand("%:t"), ".go", "", ""))`) Exit(m *ctx.Message, arg ...string) bool {
+	func (`Filename()` *`toupper(substitute(expand("%:t"), ".go", "", ""))`) Close(m *ctx.Message, arg ...string) bool {
+		switch `Filename()`.Context {
+			case m.Target:
+				if `Filename()`.Context == Index {
+					return false
+				}
+			case m.Source:
+				return true
+		}
 		return false
 	}
 
 
+	var Pulse *ctx.Message
 	var Index = &ctx.Context{Name: "`Filename()`", Help: "${1}",
 		Caches:   map[string]*ctx.Cache{},
 		Configs:  map[string]*ctx.Config{},
@@ -67,6 +79,7 @@ snippet cmd
 		${4}
 		return ""
 	}},
+
 snippet conf
 	"${1}": &ctx.Config{Name: "${2}", Value: "${3}", Help: "${4}", Hand: func(m *ctx.Message, x *ctx.Config, arg ...string) string {
 		if len(arg) > 0 {
diff --git a/etc/init.sh b/etc/init.sh
index 9f7bdbc2..e2ca999f 100644
--- a/etc/init.sh
+++ b/etc/init.sh
@@ -1,13 +1,19 @@
-# ~lex source etc/lex.sh
-~cli @lex lex
-~root aaa login root root
-# ~tcp listen ":9393"
+~cli
+	@lex lex
+
+~aaa
+	login root root
+
+~tcp
+	listen :9393
+
 # ~tcp dial ":9393"
-~cli remote slaver listen ":9393" tcp
+# ~cli remote slaver listen ":9393" tcp
 # @debug on
 
-~mdb open chat chat "chat:chat@/chat" mysql
-~web listen
+# ~mdb open chat chat "chat:chat@/chat" mysql
+# ~web listen
+# ~ssh listen :9898
 return
 
 
diff --git a/src/context/aaa/aaa.go b/src/context/aaa/aaa.go
index 98f33b97..ba9f5a7b 100644
--- a/src/context/aaa/aaa.go
+++ b/src/context/aaa/aaa.go
@@ -44,7 +44,7 @@ func (aaa *AAA) Begin(m *ctx.Message, arg ...string) ctx.Server { // {{{
 		if len(arg) > 0 { // {{{
 			bs := md5.Sum([]byte(fmt.Sprintln("用户密码:%s", arg[0])))
 			m.Assert(x.Value == "" || x.Value == hex.EncodeToString(bs[:]), "密码错误")
-			m.Cap("expire", fmt.Sprintf("%d", time.Now().Unix()+int64(m.Confi("expire"))))
+			m.Cap("expire", fmt.Sprintf("%d", time.Now().Unix()+int64(Pulse.Confi("expire"))))
 			return hex.EncodeToString(bs[:])
 		}
 		return x.Value
@@ -77,32 +77,36 @@ func (aaa *AAA) Start(m *ctx.Message, arg ...string) bool { // {{{
 	if len(arg) > 1 {
 		if m.Cap("sessid") == "" {
 			m.Cap("sessid", aaa.session(arg[1]))
-			m.Capi("nuser", 1)
+			Pulse.Capi("nuser", 1)
 		}
-		m.Log("info", m.Source, "login %s %s", m.Cap("group", arg[0]), m.Cap("username", arg[1]))
+		m.Log("info", m.Source, "create %s %s", m.Cap("group", arg[0]), m.Cap("username", arg[1]))
 		m.Cap("stream", m.Cap("username"))
 	}
+	m.Log("info", m.Source, "login %s %s", m.Cap("group"), m.Cap("username"))
 
 	return false
 }
 
 // }}}
 func (aaa *AAA) Close(m *ctx.Message, arg ...string) bool { // {{{
-	if aaa.Context == Index {
-		return false
-	}
-
 	switch aaa.Context {
 	case m.Target:
+		if aaa.Context == Index {
+			return false
+		}
+
+		if len(aaa.Context.Requests) == 0 {
+			m.Log("info", nil, "%d logout %s", Pulse.Capi("nuser", -1)+1, m.Cap("username"))
+		}
 	case m.Source:
 	}
 
-	m.Log("info", nil, "%d logout %s", Pulse.Capi("nuser", -1)+1, m.Cap("username"))
 	return true
 }
 
 // }}}
 
+var Pulse *ctx.Message
 var Index = &ctx.Context{Name: "aaa", Help: "认证中心",
 	Caches: map[string]*ctx.Cache{
 		"nuser": &ctx.Cache{Name: "用户数量", Value: "0", Help: "用户数量"},
@@ -131,6 +135,10 @@ var Index = &ctx.Context{Name: "aaa", Help: "认证中心",
 
 					m.Source.Group, m.Source.Owner = m.Cap("group"), m.Target
 					m.Log("info", m.Source, "logon %s", m.Cap("group"), m.Cap("username"))
+					if m.Name != "" {
+						c.Requests = append(c.Requests, m)
+						m.Index = len(m.Target.Requests)
+					}
 					return m.Cap("username")
 				}
 			case 2, 3:
@@ -139,12 +147,17 @@ var Index = &ctx.Context{Name: "aaa", Help: "认证中心",
 					username, password = arg[1], arg[2]
 				}
 
-				if username == m.Conf("rootname") {
+				if username == Pulse.Conf("rootname") {
 					m.Set("detail", group, username).Target.Start(m)
 				} else if msg := m.Find(username); msg == nil {
 					m.Start(username, "认证用户", group, username)
 				} else {
 					m.Target = msg.Target
+					msg.Target.Start(msg)
+					if m.Name != "" {
+						m.Target.Requests = append(m.Target.Requests, m)
+						m.Index = len(m.Target.Requests)
+					}
 				}
 
 				m.Cap("password", password)
@@ -162,7 +175,6 @@ var Index = &ctx.Context{Name: "aaa", Help: "认证中心",
 		},
 	},
 }
-var Pulse *ctx.Message
 
 func init() {
 	aaa := &AAA{}
diff --git a/src/context/cli/cli.go b/src/context/cli/cli.go
index b9f8c467..b4695538 100644
--- a/src/context/cli/cli.go
+++ b/src/context/cli/cli.go
@@ -239,6 +239,9 @@ func (cli *CLI) Begin(m *ctx.Message, arg ...string) ctx.Server { // {{{
 	if cli.Context != Index {
 		cli.Owner = nil
 	}
+	if cli.Context == Index {
+		Pulse = m
+	}
 
 	cli.target = cli.Context
 	cli.alias = map[string]string{
@@ -286,6 +289,7 @@ func (cli *CLI) Start(m *ctx.Message, arg ...string) bool { // {{{
 					cli.echo("password>")
 					fmt.Fscanln(cli.in, &password)
 
+					msg.Name = "aaa"
 					msg.Wait = make(chan bool)
 					if msg.Cmd("login", username, password) == "" {
 						cli.echo("登录失败")
@@ -299,7 +303,6 @@ func (cli *CLI) Start(m *ctx.Message, arg ...string) bool { // {{{
 						cli.Sessions = make(map[string]*ctx.Message)
 					}
 					cli.Sessions["aaa"] = msg
-					msg.Name = "aaa"
 				}
 			} else {
 				m.Cap("stream", "stdout")
@@ -352,13 +355,23 @@ func (cli *CLI) Start(m *ctx.Message, arg ...string) bool { // {{{
 
 // }}}
 func (cli *CLI) Close(m *ctx.Message, arg ...string) bool { // {{{
-	if cli.Context == Index {
-		return false
-	}
-
 	switch cli.Context {
 	case m.Target:
+		if cli.Context == Index {
+			return false
+		}
+
+		if len(cli.Context.Requests) == 0 {
+			m.Log("info", nil, "%s close %v", Pulse.Cap("nterm"), arg)
+		}
 	case m.Source:
+		if m.Name == "aaa" {
+			msg := m.Spawn(cli.Context)
+			msg.Master = cli.Context
+			if !cli.Context.Close(msg, arg...) {
+				return false
+			}
+		}
 	}
 
 	return true
@@ -366,6 +379,7 @@ func (cli *CLI) Close(m *ctx.Message, arg ...string) bool { // {{{
 
 // }}}
 
+var Pulse *ctx.Message
 var Index = &ctx.Context{Name: "cli", Help: "管理中心",
 	Caches: map[string]*ctx.Cache{
 		"nterm": &ctx.Cache{Name: "终端数量", Value: "0", Help: "已经运行的终端数量"},
diff --git a/src/context/ctx.go b/src/context/ctx.go
index 4c1e871f..0b14dca8 100644
--- a/src/context/ctx.go
+++ b/src/context/ctx.go
@@ -55,24 +55,23 @@ type Context struct {
 	Configs  map[string]*Config
 	Commands map[string]*Command
 
-	contexts map[string]*Context
-	context  *Context
 	root     *Context
+	context  *Context
+	contexts map[string]*Context
 
-	Sessions map[string]*Message
-	Historys []*Message
-	Requests []*Message
-
-	messages chan *Message
-	message  *Message
 	Master   *Context
+	messages chan *Message
+
+	Pulse    *Message
+	Requests []*Message
+	Historys []*Message
+	Sessions map[string]*Message
 
 	Index  map[string]*Context
 	Groups map[string]*Context
 	Owner  *Context
 	Group  string
 
-	Pulse *Message
 	Server
 }
 
@@ -87,24 +86,20 @@ func (c *Context) Register(s *Context, x Server) *Context { // {{{
 	c.contexts[s.Name] = s
 	s.context = c
 	s.Server = x
-
-	if c.root != nil {
-		s.root = c.root
-	}
 	return s
 }
 
 // }}}
 func (c *Context) Spawn(m *Message, name string, help string) *Context { // {{{
-	s := &Context{Name: name, Help: help, context: c}
+	s := &Context{Name: name, Help: help, root: c.root, context: c}
 
-	if c.Server != nil {
+	if m.Target = s; c.Server != nil {
 		c.Register(s, c.Server.Spawn(m, s, m.Meta["detail"]...))
 	} else {
 		c.Register(s, nil)
 	}
 
-	if m.Target = s; m.Template != nil {
+	if m.Template != nil {
 		m.Template.Source = s
 	}
 
@@ -116,20 +111,22 @@ func (c *Context) Begin(m *Message) *Context { // {{{
 	c.Caches["status"] = &Cache{Name: "服务状态(begin/start/close)", Value: "begin", Help: "服务状态，begin:初始完成，start:正在运行，close:未在运行"}
 	c.Caches["stream"] = &Cache{Name: "服务数据", Value: "", Help: "服务数据"}
 
+	m.Index = 1
+	c.Pulse = m
+	c.Requests = []*Message{m}
+	c.Historys = []*Message{m}
+
 	c.Master = m.Master.Master
 	c.Owner = m.Master.Owner
 	c.Group = m.Master.Group
 
-	m.Log("begin", nil, "%d %v", m.Capi("ncontext", 1), m.Meta["detail"])
+	m.Log("begin", nil, "%d context %v", m.Capi("ncontext", 1), m.Meta["detail"])
 	for k, x := range c.Configs {
 		if x.Hand != nil {
 			m.Conf(k, x.Value)
 		}
 	}
 
-	c.Requests = []*Message{m}
-	c.Historys = []*Message{m}
-
 	if c.Server != nil {
 		c.Server.Begin(m, m.Meta["detail"]...)
 	}
@@ -139,34 +136,39 @@ func (c *Context) Begin(m *Message) *Context { // {{{
 
 // }}}
 func (c *Context) Start(m *Message) bool { // {{{
-	if m.Cap("status") != "start" && c.Server != nil {
+	if c.Requests = append(c.Requests, m); m.Cap("status") != "start" {
 		running := make(chan bool)
 		go m.AssertOne(m, true, func(m *Message) {
-			m.Log(m.Cap("status", "start"), c, "%d %v", m.Capi("nserver", 1), m.Meta["detail"])
+			m.Log(m.Cap("status", "start"), nil, "%d server %v", m.Capi("nserver", 1), m.Meta["detail"])
 
-			if m != c.Requests[0] {
-				c.Requests = append(c.Requests, m)
-			}
-
-			if running <- true; c.Server.Start(m, m.Meta["detail"]...) {
+			if running <- true; c.Server != nil && c.Server.Start(m, m.Meta["detail"]...) {
 				c.Close(m, m.Meta["detail"]...)
 			}
 		})
 		<-running
 	}
-
 	return true
 }
 
 // }}}
 func (c *Context) Close(m *Message, arg ...string) bool { // {{{
-	m.Log("close", c, "close %v", arg)
+	m.Log("close", c, "%v", arg)
+
 	if m.Target == c {
-		for k, v := range c.Sessions {
-			delete(c.Sessions, k)
-			if v.Target != c && !v.Target.Close(v, arg...) {
-				return false
+		if m.Index == 0 {
+			for i := len(c.Requests) - 1; i >= 0; i-- {
+				v := c.Requests[i]
+				if v.Index = -1; v.Source != c && !v.Source.Close(v, arg...) {
+					v.Index = i
+					return false
+				}
+				c.Requests = c.Requests[:i]
 			}
+		} else if m.Index > 0 {
+			for i := m.Index - 1; i < len(c.Requests)-1; i++ {
+				c.Requests[i] = c.Requests[i+1]
+			}
+			c.Requests = c.Requests[:len(c.Requests)-1]
 		}
 	}
 
@@ -174,37 +176,30 @@ func (c *Context) Close(m *Message, arg ...string) bool { // {{{
 		return false
 	}
 
-	if m.Source == c {
+	if m.Source == c && m.Target != c {
 		if _, ok := c.Sessions[m.Name]; ok {
 			delete(c.Sessions, m.Name)
-			m.Target.Server.Close(m, arg...)
 		}
-	} else {
-		if m.Index == -1 {
-			return true
-		}
-	}
-
-	if len(c.Sessions) > 0 {
-		return false
-	}
-
-	if m.Cap("status") == "close" {
 		return true
 	}
 
-	if c.context != nil && len(c.contexts) == 0 {
-		m.Log("close", c, "%d context %v", m.root.Capi("ncontext", -1)+1, arg)
-		delete(c.context.contexts, c.Name)
+	if len(c.Requests) > 1 {
+		return false
 	}
 
-	for _, v := range c.Requests {
-		if v.Source != c && v.Index != -1 {
-			v.Index = -1
-			v.Source.Close(v, arg...)
+	if m.Cap("status") == "start" {
+		m.Log(m.Cap("status", "close"), nil, "%d server %v", m.root.Capi("nserver", -1)+1, arg)
+		for _, v := range c.Sessions {
+			if v.Target != c {
+				v.Target.Close(v, arg...)
+			}
 		}
 	}
 
+	if m.Index == 0 && c.context != nil && len(c.contexts) == 0 {
+		m.Log("close", nil, "%d context %v", m.root.Capi("ncontext", -1)+1, arg)
+		delete(c.context.contexts, c.Name)
+	}
 	return true
 }
 
@@ -388,6 +383,7 @@ type Message struct {
 	code int
 	time time.Time
 
+	Recv chan bool
 	Wait chan bool
 	Meta map[string][]string
 	Data map[string]interface{}
@@ -534,7 +530,7 @@ func (m *Message) Assert(e interface{}, msg ...string) bool { // {{{
 		e = errors.New("error")
 	}
 
-	m.Set("result", "error: ", fmt.Sprintln(e))
+	m.Set("result", "error: ", fmt.Sprintln(e), "\n")
 	panic(e)
 }
 
@@ -828,7 +824,7 @@ func (m *Message) End(s bool) { // {{{
 
 func (m *Message) Exec(key string, arg ...string) string { // {{{
 
-	for _, c := range []*Context{m.Target, m.Target.Master, m.Source, m.Source.Master} {
+	for _, c := range []*Context{m.Target, m.Target.Master, m.Target.Owner, m.Source, m.Source.Master, m.Source.Owner} {
 		for s := c; s != nil; s = s.context {
 
 			m.Master = m.Source
@@ -1077,7 +1073,8 @@ func (m *Message) Cap(key string, arg ...string) string { // {{{
 
 // }}}
 
-var Index = &Context{Name: "ctx", Help: "元始模块",
+var Pulse = &Message{code: 0, time: time.Now(), Wait: make(chan bool), Source: Index, Master: Index, Target: Index}
+var Index = &Context{Name: "ctx", Help: "模块中心",
 	Caches: map[string]*Cache{
 		"nserver":  &Cache{Name: "服务数量", Value: "0", Help: "显示已经启动运行模块的数量"},
 		"ncontext": &Cache{Name: "模块数量", Value: "0", Help: "显示功能树已经注册模块的数量"},
@@ -1562,8 +1559,6 @@ var Index = &Context{Name: "ctx", Help: "元始模块",
 	},
 }
 
-var Pulse = &Message{code: 0, time: time.Now(), Wait: make(chan bool), Source: Index, Master: Index, Target: Index}
-
 func init() {
 	Pulse.root = Pulse
 	Index.root = Index
diff --git a/src/context/ssh/ssh.go b/src/context/ssh/ssh.go
index 174ad3a6..8d1666a3 100644
--- a/src/context/ssh/ssh.go
+++ b/src/context/ssh/ssh.go
@@ -1,39 +1,153 @@
-package ssh
-
-import (
+package ssh // {{{
+// }}}
+import ( // {{{
+	"bufio"
 	"context"
+	"fmt"
+	"net"
+	"net/url"
+	"strings"
 )
 
+// }}}
+
 type SSH struct {
+	send map[string]*ctx.Message
+	*bufio.Reader
+	net.Conn
 	*ctx.Context
 }
 
-func (ssh *SSH) Spawn(m *ctx.Message, c *ctx.Context, arg ...string) ctx.Server {
-	c.Caches = map[string]*ctx.Cache{}
+func (ssh *SSH) Spawn(m *ctx.Message, c *ctx.Context, arg ...string) ctx.Server { // {{{
+	c.Caches = map[string]*ctx.Cache{
+		"nsend": &ctx.Cache{Name: "nsend", Value: "0", Help: "消息发送数量"},
+	}
 	c.Configs = map[string]*ctx.Config{}
 	c.Commands = map[string]*ctx.Command{}
 
 	s := new(SSH)
 	s.Context = c
+
+	s.send = make(map[string]*ctx.Message)
 	return s
 }
 
-func (ssh *SSH) Begin(m *ctx.Message, arg ...string) ctx.Server {
+// }}}
+func (ssh *SSH) Begin(m *ctx.Message, arg ...string) ctx.Server { // {{{
+	if ssh.Context == Index {
+		Pulse = m
+	}
 	return ssh
 }
 
-func (ssh *SSH) Start(m *ctx.Message, arg ...string) bool {
+// }}}
+func (ssh *SSH) Start(m *ctx.Message, arg ...string) bool { // {{{
+	ssh.Owner = nil
+	ssh.Conn = m.Data["io"].(net.Conn)
+	ssh.Reader = bufio.NewReader(ssh.Conn)
+	m.Log("info", nil, "%d remote %v", 0, ssh.Conn.RemoteAddr())
+
+	target := m.Target
+	msg := m.Spawn(target)
+
+	for {
+		line, e := ssh.Reader.ReadString('\n')
+		m.Assert(e)
+
+		if line = strings.TrimSpace(line); len(line) == 0 {
+			if msg.Has("detail") {
+				msg.Log("info", nil, "remote: %v", msg.Meta["detail"])
+				msg.Log("info", nil, "remote: %v", msg.Meta["option"])
+				msg.Cmd(msg.Meta["detail"]...)
+				target = msg.Target
+
+				fmt.Fprintf(ssh.Conn, "result: ")
+				for _, v := range msg.Meta["result"] {
+					fmt.Fprintf(ssh.Conn, "%s", url.QueryEscape(v))
+				}
+				fmt.Fprintf(ssh.Conn, "\n")
+
+				msg.Meta["append"] = append(msg.Meta["append"], "nsend")
+				msg.Add("append", "nsend", msg.Get("nsend"))
+				for _, k := range msg.Meta["append"] {
+					for _, v := range msg.Meta[k] {
+						fmt.Fprintf(ssh.Conn, "%s: %s\n", k, v)
+					}
+				}
+				fmt.Fprintf(ssh.Conn, "\n")
+			} else if msg.Has("result") {
+				msg.Log("info", nil, "remote: %v", msg.Meta["result"])
+				msg.Log("info", nil, "remote: %v", msg.Meta["append"])
+				send := ssh.send[msg.Get("nsend")]
+				send.Meta = msg.Meta
+				send.Recv <- true
+			}
+			msg = m.Spawn(target)
+			continue
+		}
+
+		ls := strings.SplitN(line, ":", 2)
+		ls[0] = strings.TrimSpace(ls[0])
+		ls[1], e = url.QueryUnescape(strings.TrimSpace(ls[1]))
+		m.Assert(e)
+		msg.Add("option", ls[0], ls[1])
+	}
 	return false
 }
 
-func (ssh *SSH) Close(m *ctx.Message, arg ...string) bool {
+// }}}
+func (ssh *SSH) Close(m *ctx.Message, arg ...string) bool { // {{{
 	return false
 }
 
-var Index = &ctx.Context{Name: "ssh", Help: "加密终端",
-	Caches:   map[string]*ctx.Cache{},
-	Configs:  map[string]*ctx.Config{},
-	Commands: map[string]*ctx.Command{},
+// }}}
+
+var Pulse *ctx.Message
+var Index = &ctx.Context{Name: "ssh", Help: "集群中心",
+	Caches: map[string]*ctx.Cache{
+		"nhost": &ctx.Cache{Name: "nhost", Value: "0", Help: "主机数量"},
+	},
+	Configs: map[string]*ctx.Config{},
+	Commands: map[string]*ctx.Command{
+		"listen": &ctx.Command{Name: "listen address", Help: "监听连接", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) string {
+			tcp := m.Find("tcp", true) // {{{
+			tcp.Cmd(m.Meta["detail"]...)
+			return ""
+			// }}}
+		}},
+		"dial": &ctx.Command{Name: "dial address", Help: "建立连接", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) string {
+			tcp := m.Find("tcp", true) // {{{
+			tcp.Cmd(m.Meta["detail"]...)
+			return ""
+			// }}}
+		}},
+		"open": &ctx.Command{Name: "open", Help: "打开连接", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) string {
+			m.Start("host"+Pulse.Cap("nhost"), "主机连接") // {{{
+			return ""
+			// }}}
+		}},
+		"remote": &ctx.Command{Name: "remote detail...", Help: "远程执行", Hand: func(m *ctx.Message, c *ctx.Context, key string, arg ...string) string {
+			ssh, ok := m.Target.Server.(*SSH) // {{{
+			m.Assert(ok)
+			m.Capi("nsend", 1)
+			m.Recv = make(chan bool)
+			m.Add("option", "nsend", m.Cap("nsend"))
+			ssh.send[m.Cap("nsend")] = m
+
+			for _, v := range arg {
+				fmt.Fprintf(ssh.Conn, "detail: %v\n", v)
+			}
+			for _, k := range m.Meta["option"] {
+				for _, v := range m.Meta[k] {
+					fmt.Fprintf(ssh.Conn, "%s: %s\n", k, v)
+				}
+			}
+			fmt.Fprintf(ssh.Conn, "\n")
+			<-m.Recv
+			return ""
+			// }}}
+		}},
+	},
 }
 
 func init() {
diff --git a/src/example/bench.go b/src/example/bench.go
index e8f8ee84..38e9ed1d 100644
--- a/src/example/bench.go
+++ b/src/example/bench.go
@@ -4,13 +4,13 @@ import (
 	"context"
 	_ "context/aaa"
 	_ "context/cli"
+	_ "context/ssh"
 
 	_ "context/mdb"
+	_ "context/nfs"
 	_ "context/tcp"
 	_ "context/web"
 
-	_ "context/ssh"
-
 	_ "context/lex"
 
 	"os"