diff --git a/README.md b/README.md
index 4e5845a..6739c75 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,10 @@
 ## Example
 
 ### 在远程执行ssh命令
+提供3个方法: Run() Exec() Output() 
+1. Run() : 程序执行后,不再受执行者控制. 适用于启动服务端进程.
+2. Exec() : 在控制台同步实时输出程序的执行结果.
+3. Output() : 会等待程序执行完成后,输出执行结果,在需要对执行的结果进行操作时使用.
 ```go
 package main
 import (
@@ -32,7 +36,7 @@ func main() {
 	}
 	defer c.Close()
 
-	output, err := c.Exec("uptime")
+	output, err := c.Output("uptime")
 	if err != nil {
 		panic(err)
 	}
diff --git a/client.go b/client.go
index bb26658..e63b1c5 100644
--- a/client.go
+++ b/client.go
@@ -17,6 +17,7 @@ const DefaultTimeout = 30 * time.Second
 type Client struct {
 	*Config
 	SSHClient  *ssh.Client
+	SSHSession *ssh.Session
 	SFTPClient *sftp.Client
 }
 
@@ -65,7 +66,13 @@ func New(cnf *Config) (client *Client, err error) {
 		return client, errors.New("Failed to conn sftp: " + err.Error())
 	}
 
-	return &Client{SSHClient: sshClient, SFTPClient: sftpClient}, nil
+	session, err := sshClient.NewSession()
+	if err != nil {
+		return nil, err
+	}
+	// defer session.Close()
+
+	return &Client{SSHClient: sshClient, SFTPClient: sftpClient, SSHSession: session}, nil
 }
 
 // NewClient 根据配置
@@ -149,4 +156,5 @@ func NewWithPrivateKey(Host, Port, User, Passphrase string) (client *Client, err
 func (c *Client) Close() {
 	c.SFTPClient.Close()
 	c.SSHClient.Close()
+	c.SSHSession.Close()
 }
diff --git a/example/bash/Makefile b/example/bash/Makefile
new file mode 100644
index 0000000..b150f08
--- /dev/null
+++ b/example/bash/Makefile
@@ -0,0 +1,124 @@
+PROJECT = transfer
+VERSION = $(shell git describe)
+BRANCH = $(shell git name-rev --name-only HEAD)
+VERSION ="$(echo $TRAVIS_TAG)"
+ARCNAME = $(PROJECT)-$(VERSION)-$(GOOS)-$(GOARCH)
+ARTIFACTS_DIR=artifact
+
+
+# ZIP="zip -9 -r"
+# TAR="tar cvf"
+# GZIP="gzip -9"
+# GZIP_7Z="7za a -tgzip -mx9"
+# ZIP_7Z="7za a -tzip -mx9"
+ifndef ZIP
+	ifneq ($(shell which zip 2>/dev/null),)
+		ZIP := zip -9
+	endif
+	ifneq ($(shell which 7z 2>/dev/null),)
+		ZIP := 7z a -tzip -mx=9
+	endif
+	ifneq ($(shell which 7za 2>/dev/null),)
+		ZIP := 7za a -tzip -mx=9
+	endif
+    ifndef ZIP
+        $(warning "No zip / 7z / 7za in ($(PATH))")
+        ZIP := : zip_not_found
+    endif
+endif
+
+.PHONY: all release release-all
+all: release-all
+
+
+.PHONY: windows-dependencies
+windows-dependencies:
+	@ go get github.com/josephspurrier/goversioninfo/cmd/goversioninfo
+
+.PHONY: embed-assets
+embed-assets:
+	@ GO111MODULE=off go get -u github.com/jteeuwen/go-bindata/...
+	@# go-bindata ./logos/microBadger_headert.png ./webpage.html
+
+
+
+release:
+	env CGO_ENABLED=0 GOOS=$(GOOS) GOARCH=$(GOARCH) go build $(FLAGS) -ldflags='-s -w -X github.com/rinetd/transfer/version.Version=$(VERSION)' -o build/$(GOOS)-$(GOARCH)/$(PROJECT)$(EXT)
+	- tar czf build/$(ARCNAME).tar.gz -C build/$(GOOS)-$(GOARCH)/ $(PROJECT)$(EXT)
+	- tar czf build/$(ARCNAME).tar.gz -C build/$(GOOS)-$(GOARCH)/ $(PROJECT)$(EXT)
+ifeq ($(OS),Windows_NT)
+	cd dist; \
+	rm -f $(ARCNAME)-*-Win.zip; \
+	$(ZIP) $(ARCNAME)-$(VERSTR)-Win.zip build/$(GOOS)-$(GOARCH)/ $(PROJECT)$(EXT);
+	$(ZIP) dist/$(ARCNAME)-$(VERSTR)-Win.zip  -r0 images/*.png; 
+endif
+
+release-all:
+	# -@$(MAKE) release GOOS=darwin GOARCH=amd64
+	# -@$(MAKE) release GOOS=linux GOARCH=386
+	# -@$(MAKE) release GOOS=linux GOARCH=amd64
+	-@$(MAKE) release GOOS=windows GOARCH=386 EXT=.exe
+	# -@$(MAKE) release GOOS=windows GOARCH=amd64 EXT=.exe
+
+.PHONY: windows 
+windows: windows-dependencies embed-assets
+	goversioninfo -icon=rc/icon.ico -manifest=rc/manifest.exe.manifest rc/versioninfo.json
+	@- rm binaries/*.exe 
+	CGO_ENABLED=0 GOOS=windows GOARCH=386 go build -x -ldflags="-s -w " -o binaries/deploy`date +%m%d`.exe
+	@# - rm binaries/deploy_windows_64bit.exe
+	@# - CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags="-s -w -H=windowsgui -linkmode internal" -o binaries/deploy_windows_64bit.exe
+	rm resource.syso
+
+platform:
+	# @$(MAKE) releaseGOOS=js GOARCH=wasm
+	# @$(MAKE) release GOOS=windows GOARCH=386 FLAGS='-ldflags="-H=windowsgui"' EXE=.exe
+	# @$(MAKE) release GOOS=windows GOARCH=amd64 FLAGS='-ldflags="-H=windowsgui"' EXE=.exe
+	# @$(MAKE) release GOOS=linux GOARCH=arm
+	# @$(MAKE) release GOOS=linux GOARCH=arm64
+	# @$(MAKE) release GOOS=linux GOARCH=mips
+	# @$(MAKE) release GOOS=linux GOARCH=mips64
+	# @$(MAKE) release GOOS=linux GOARCH=mips64le
+	# @$(MAKE) release GOOS=linux GOARCH=mipsle
+	# @$(MAKE) release GOOS=linux GOARCH=ppc64
+	# @$(MAKE) release GOOS=linux GOARCH=ppc64le
+	# @$(MAKE) release GOOS=linux GOARCH=s390x
+	# @$(MAKE) release GOOS=android GOARCH=386
+	# @$(MAKE) release GOOS=android GOARCH=amd64
+	# @$(MAKE) release GOOS=android GOARCH=arm
+	# @$(MAKE) release GOOS=android GOARCH=arm64
+	# @$(MAKE) release GOOS=darwin GOARCH=386
+	# @$(MAKE) release GOOS=darwin GOARCH=arm
+	# @$(MAKE) release GOOS=darwin GOARCH=arm64
+	# @$(MAKE) release GOOS=dragonfly GOARCH=amd64
+	# @$(MAKE) release GOOS=freebsd GOARCH=386
+	# @$(MAKE) release GOOS=freebsd GOARCH=amd64
+	# @$(MAKE) release GOOS=freebsd GOARCH=arm
+	# @$(MAKE) release GOOS=nacl GOARCH=386
+	# @$(MAKE) release GOOS=nacl GOARCH=amd64p32
+	# @$(MAKE) release GOOS=nacl GOARCH=arm
+	# @$(MAKE) release GOOS=netbsd GOARCH=386
+	# @$(MAKE) release GOOS=netbsd GOARCH=amd64
+	# @$(MAKE) release GOOS=netbsd GOARCH=arm
+	# @$(MAKE) release GOOS=openbsd GOARCH=386
+	# @$(MAKE) release GOOS=openbsd GOARCH=amd64
+	# @$(MAKE) release GOOS=openbsd GOARCH=arm
+	# @$(MAKE) release GOOS=plan9 GOARCH=386
+	# @$(MAKE) release GOOS=plan9 GOARCH=amd64
+	# @$(MAKE) release GOOS=plan9 GOARCH=arm
+	# @$(MAKE) release GOOS=solaris GOARCH=amd64
+
+
+.PHONY: build
+build:
+	go get ./...
+
+.PHONY: test
+test:
+	go get -t ./...
+	go test -v ...
+
+build-image:
+	docker build -t rientd/transfer .
+
+clean:
+	rm -rf build dist
diff --git a/example/get/main.go b/example/download/main.go
similarity index 100%
rename from example/get/main.go
rename to example/download/main.go
diff --git a/example/getdata/Makefile b/example/getdata/Makefile
new file mode 100644
index 0000000..396bac3
--- /dev/null
+++ b/example/getdata/Makefile
@@ -0,0 +1,52 @@
+COMPILE_TIME = $(shell date +"%Y-%M-%d %H:%M:%S")
+BUILD=`date +%FT%T%z`
+
+# Setup the -ldflags option for go build here, interpolate the variable values
+LDFLAGS_f1=-ldflags "-w -s -X main.Version=${VERSION} -X main.Build=${BUILD} -X main.Entry=f1"
+LDFLAGS_f2=-ldflags "-w -s -X main.Version=${VERSION} -X main.Build=${BUILD} -X main.Entry=f2"
+
+
+name:=getdata
+# make ver=release
+ifeq ($(ver), debug)
+	CXXFLAGS = -c -g -Ddebug
+else
+	CXXFLAGS = -c -O3 
+endif
+
+.PHONY: all
+all: windows
+
+.PHONY: windows-dependencies
+windows-dependencies:
+	go get github.com/josephspurrier/goversioninfo/cmd/goversioninfo
+
+.PHONY: embed-assets
+embed-assets:
+	@# go get github.com/jteeuwen/go-bindata/...
+	@# go-bindata ./logos/$(name)_headert.png ./webpage.html
+
+.PHONY: linux
+linux: *.go embed-assets
+	GOOS=linux GOARCH=amd64 go build -o output/$(name)_linux_64bit
+	GOOS=linux GOARCH=386 go build -o output/$(name)_linux_32bit
+	strip output/$(name)_linux_*
+
+.PHONY: windows 
+windows: *.go windows-dependencies embed-assets
+	goversioninfo -icon=rc/icon.ico -manifest=rc/manifest.exe.manifest rc/versioninfo.json
+	@- rm output/*.exe 
+	CGO_ENABLED=0 GOOS=windows GOARCH=386 go build -ldflags="-s -w " -o output/$(name)_`date +%m-%d`.exe
+	@# - rm output/$(name)_windows_64bit.exe
+	@# - CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags="-s -w -H=windowsgui -linkmode internal" -o output/deploy_windows_64bit.exe
+	rm resource.syso
+
+.PHONY: osx
+osx: *.go embed-assets
+	GOOS=darwin GOARCH=amd64 go build -o output/$(name)_osx_64bit
+	GOOS=darwin GOARCH=386 go build -o output/$(name)_osx_32bit
+
+
+.PHONY: clean
+clean:
+	rm -rf output/*
\ No newline at end of file
diff --git a/example/getdata/main.go b/example/getdata/main.go
new file mode 100644
index 0000000..917f937
--- /dev/null
+++ b/example/getdata/main.go
@@ -0,0 +1,105 @@
+package getdata
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path"
+	"time"
+
+	"github.com/pkg/sftp"
+	"golang.org/x/crypto/ssh"
+)
+
+func connect(user, password, host string, port int) (*sftp.Client, error) {
+	var (
+		auth         []ssh.AuthMethod
+		addr         string
+		clientConfig *ssh.ClientConfig
+		sshClient    *ssh.Client
+		sftpClient   *sftp.Client
+		err          error
+	)
+	// get auth method
+	auth = make([]ssh.AuthMethod, 0)
+	auth = append(auth, ssh.Password(password))
+
+	clientConfig = &ssh.ClientConfig{
+		User:            user,
+		Auth:            auth,
+		Timeout:         30 * time.Second,
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
+	}
+
+	// connet to ssh
+	addr = fmt.Sprintf("%s:%d", host, port)
+
+	if sshClient, err = ssh.Dial("tcp", addr, clientConfig); err != nil {
+		return nil, err
+	}
+
+	// create sftp client
+	if sftpClient, err = sftp.NewClient(sshClient); err != nil {
+		return nil, err
+	}
+
+	return sftpClient, nil
+}
+
+var FORMAT = "2006-01-02"
+var (
+	err        error
+	sftpClient *sftp.Client
+)
+var dbnames = []string{"tower", "mengyin", "pingyi", "shizhi", "tancheng", "yinan", "yishui", "feixian", "gaoxinqu", "hedong", "jingkaiqu", "junan", "luozhuang", "lanling", "lanshan", "lingang", "linshu"}
+
+func main() {
+
+	// 这里换成实际的 SSH 连接的 用户名，密码，主机名或IP，SSH端口
+	// sftpClient, err = connect("root", "sdlylshl871016", "111.235.181.127", 443)
+	sftpClient, err = connect("root", "HR2018!!", "15.14.12.150", 22)
+	if err != nil {
+		log.Println(err)
+	}
+	defer sftpClient.Close()
+	// 用来测试的远程文件路径 和 本地文件夹
+	// fmt.Println(shizhi)
+	// var localDir = "."
+	date_dir := "db_" + time.Now().Format(FORMAT)
+	os.Mkdir(date_dir, 0755)
+	var lzkpbi = "/docker/backup/" + time.Now().Format(FORMAT) + "_lzkp_bi_inner.zip"
+	Down(lzkpbi, date_dir)
+	for _, n := range dbnames {
+		p := "/docker/backup/" + time.Now().Format(FORMAT) + "_" + n + "_inner.zip"
+		// fmt.Println(p)
+
+		Down(p, date_dir)
+	}
+	// fmt.Scanln()
+}
+
+func Down(src, dst string) {
+	fmt.Println(src, "数据正在复制中，请耐心等待...")
+	srcFile, err := sftpClient.Open(src)
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	defer srcFile.Close()
+
+	var localFileName = path.Base(src)
+	dstFile, err := os.Create(path.Join(dst, localFileName))
+	if err != nil {
+		log.Println(err)
+		return
+	}
+	defer dstFile.Close()
+
+	if _, err = srcFile.WriteTo(dstFile); err != nil {
+		log.Println(err)
+		return
+	}
+
+	fmt.Println(src, "数据复制完成!")
+
+}
diff --git a/example/getdata/rc/icon.ico b/example/getdata/rc/icon.ico
new file mode 100644
index 0000000..94e9663
Binary files /dev/null and b/example/getdata/rc/icon.ico differ
diff --git a/example/getdata/rc/manifest.exe.manifest b/example/getdata/rc/manifest.exe.manifest
new file mode 100644
index 0000000..df4430f
--- /dev/null
+++ b/example/getdata/rc/manifest.exe.manifest
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+    <assemblyIdentity version="1.0.0.0" processorArchitecture="*" name="Hardentools" type="win32"/>
+    <dependency>
+        <dependentAssembly>
+            <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="*" publicKeyToken="6595b64144ccf1df" language="*"/>
+        </dependentAssembly>
+    </dependency>
+    <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+        <security>
+            <requestedPrivileges>
+                <!-- <requestedExecutionLevel level="asInvoker" uiAccess="false" />   -->
+                <!-- <requestedExecutionLevel level="requireAdministrator" uiAccess="false" />   -->
+                <requestedExecutionLevel level="highestAvailable" uiAccess="false" />  
+            </requestedPrivileges>
+        </security>
+    </trustInfo>
+</assembly>
\ No newline at end of file
diff --git a/example/getdata/rc/versioninfo.json b/example/getdata/rc/versioninfo.json
new file mode 100644
index 0000000..77423aa
--- /dev/null
+++ b/example/getdata/rc/versioninfo.json
@@ -0,0 +1,43 @@
+{
+    "_FixedFileInfo": {
+        "FileVersion": {
+            "Major": 18,
+            "Minor": 7,
+            "Patch": 16,
+            "Build": 0
+        },
+        "ProductVersion": {
+            "Major": 2018,
+            "Minor": 7,
+            "Patch": 16,
+            "Build": 0
+        },
+        "FileFlagsMask": "3f",
+        "FileFlags ": "00",
+        "FileOS": "040004",
+        "FileType": "01",
+        "FileSubType": "00"
+    },
+    "StringFileInfo": {
+        "FileDescription": "履职考评系统升级",
+        "FileVersion": "2.1.0",
+        "ProductName": "履职考评系统",
+        "ProductVersion": "2018.7.1",
+        "LegalCopyright": "Copyright@pytool",
+        "OriginalFilename": "update.exe",
+        "Comments": " ",
+        "CompanyName": "Company",
+        "InternalName": "",
+        "LegalTrademarks": "",
+        "PrivateBuild": "",
+        "SpecialBuild": ""
+    },
+    "VarFileInfo": {
+        "Translation": {
+            "LangID": "0409",
+            "CharsetID": "04B0"
+        }
+    },
+    "IconPath": "deploy.ico",
+    "ManifestPath": ""
+}
\ No newline at end of file
diff --git a/example/runetl/Makefile b/example/runetl/Makefile
new file mode 100644
index 0000000..bc56960
--- /dev/null
+++ b/example/runetl/Makefile
@@ -0,0 +1,126 @@
+PROJECT = 数据同步
+VERSION = $(shell git describe)
+BRANCH = $(shell git name-rev --name-only HEAD)
+VERSION ="$(echo $TRAVIS_TAG)"
+ARCNAME = $(PROJECT)-$(VERSION)-$(GOOS)-$(GOARCH)
+ARTIFACTS_DIR=artifact
+
+
+# ZIP="zip -9 -r"
+# TAR="tar cvf"
+# GZIP="gzip -9"
+# GZIP_7Z="7za a -tgzip -mx9"
+# ZIP_7Z="7za a -tzip -mx9"
+ifndef ZIP
+	ifneq ($(shell which zip 2>/dev/null),)
+		ZIP := zip -9
+	endif
+	ifneq ($(shell which 7z 2>/dev/null),)
+		ZIP := 7z a -tzip -mx=9
+	endif
+	ifneq ($(shell which 7za 2>/dev/null),)
+		ZIP := 7za a -tzip -mx=9
+	endif
+    ifndef ZIP
+        $(warning "No zip / 7z / 7za in ($(PATH))")
+        ZIP := : zip_not_found
+    endif
+endif
+
+.PHONY: all release release-all
+all: release-all
+
+
+.PHONY: windows-dependencies
+windows-dependencies:
+	@ go get github.com/josephspurrier/goversioninfo/cmd/goversioninfo
+
+.PHONY: embed-assets
+embed-assets:
+	@ GO111MODULE=off go get -u github.com/jteeuwen/go-bindata/...
+	@# go-bindata ./logos/microBadger_headert.png ./webpage.html
+
+
+
+release:
+	goversioninfo -icon=rc/icon.ico -manifest=rc/manifest.exe.manifest rc/versioninfo.json
+	env CGO_ENABLED=0 GOOS=$(GOOS) GOARCH=$(GOARCH) go build $(FLAGS) -ldflags='-s -w -X github.com/rinetd/transfer/version.Version=$(VERSION)' -o build/$(GOOS)-$(GOARCH)/$(PROJECT)$(EXT)
+	rm resource.syso
+	- tar czf build/$(ARCNAME).tar.gz -C build/$(GOOS)-$(GOARCH)/ $(PROJECT)$(EXT)
+	- tar czf build/$(ARCNAME).tar.gz -C build/$(GOOS)-$(GOARCH)/ $(PROJECT)$(EXT)
+ifeq ($(OS),Windows_NT)
+	cd dist; \
+	rm -f $(ARCNAME)-*-Win.zip; \
+	$(ZIP) $(ARCNAME)-$(VERSTR)-Win.zip build/$(GOOS)-$(GOARCH)/ $(PROJECT)$(EXT);
+	$(ZIP) dist/$(ARCNAME)-$(VERSTR)-Win.zip  -r0 images/*.png; 
+endif
+
+release-all:
+	# -@$(MAKE) release GOOS=darwin GOARCH=amd64
+	# -@$(MAKE) release GOOS=linux GOARCH=386
+	# -@$(MAKE) release GOOS=linux GOARCH=amd64
+	-@$(MAKE) release GOOS=windows GOARCH=386 EXT=.exe
+	# -@$(MAKE) release GOOS=windows GOARCH=amd64 EXT=.exe
+
+.PHONY: windows 
+windows: windows-dependencies embed-assets
+	goversioninfo -icon=rc/icon.ico -manifest=rc/manifest.exe.manifest rc/versioninfo.json
+	@- rm binaries/*.exe 
+	CGO_ENABLED=0 GOOS=windows GOARCH=386 go build -x -ldflags="-s -w " -o binaries/deploy`date +%m%d`.exe
+	@# - rm binaries/deploy_windows_64bit.exe
+	@# - CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags="-s -w -H=windowsgui -linkmode internal" -o binaries/deploy_windows_64bit.exe
+	rm resource.syso
+
+platform:
+	# @$(MAKE) releaseGOOS=js GOARCH=wasm
+	# @$(MAKE) release GOOS=windows GOARCH=386 FLAGS='-ldflags="-H=windowsgui"' EXE=.exe
+	# @$(MAKE) release GOOS=windows GOARCH=amd64 FLAGS='-ldflags="-H=windowsgui"' EXE=.exe
+	# @$(MAKE) release GOOS=linux GOARCH=arm
+	# @$(MAKE) release GOOS=linux GOARCH=arm64
+	# @$(MAKE) release GOOS=linux GOARCH=mips
+	# @$(MAKE) release GOOS=linux GOARCH=mips64
+	# @$(MAKE) release GOOS=linux GOARCH=mips64le
+	# @$(MAKE) release GOOS=linux GOARCH=mipsle
+	# @$(MAKE) release GOOS=linux GOARCH=ppc64
+	# @$(MAKE) release GOOS=linux GOARCH=ppc64le
+	# @$(MAKE) release GOOS=linux GOARCH=s390x
+	# @$(MAKE) release GOOS=android GOARCH=386
+	# @$(MAKE) release GOOS=android GOARCH=amd64
+	# @$(MAKE) release GOOS=android GOARCH=arm
+	# @$(MAKE) release GOOS=android GOARCH=arm64
+	# @$(MAKE) release GOOS=darwin GOARCH=386
+	# @$(MAKE) release GOOS=darwin GOARCH=arm
+	# @$(MAKE) release GOOS=darwin GOARCH=arm64
+	# @$(MAKE) release GOOS=dragonfly GOARCH=amd64
+	# @$(MAKE) release GOOS=freebsd GOARCH=386
+	# @$(MAKE) release GOOS=freebsd GOARCH=amd64
+	# @$(MAKE) release GOOS=freebsd GOARCH=arm
+	# @$(MAKE) release GOOS=nacl GOARCH=386
+	# @$(MAKE) release GOOS=nacl GOARCH=amd64p32
+	# @$(MAKE) release GOOS=nacl GOARCH=arm
+	# @$(MAKE) release GOOS=netbsd GOARCH=386
+	# @$(MAKE) release GOOS=netbsd GOARCH=amd64
+	# @$(MAKE) release GOOS=netbsd GOARCH=arm
+	# @$(MAKE) release GOOS=openbsd GOARCH=386
+	# @$(MAKE) release GOOS=openbsd GOARCH=amd64
+	# @$(MAKE) release GOOS=openbsd GOARCH=arm
+	# @$(MAKE) release GOOS=plan9 GOARCH=386
+	# @$(MAKE) release GOOS=plan9 GOARCH=amd64
+	# @$(MAKE) release GOOS=plan9 GOARCH=arm
+	# @$(MAKE) release GOOS=solaris GOARCH=amd64
+
+
+.PHONY: build
+build:
+	go get ./...
+
+.PHONY: test
+test:
+	go get -t ./...
+	go test -v ...
+
+build-image:
+	docker build -t rientd/transfer .
+
+clean:
+	rm -rf build dist
diff --git a/example/runetl/main.go b/example/runetl/main.go
new file mode 100644
index 0000000..37fb721
--- /dev/null
+++ b/example/runetl/main.go
@@ -0,0 +1,31 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/pytool/ssh"
+)
+
+func main() {
+	config := ssh.Default.WithHost("192.168.5.157").WithPassword("HR2018!!")
+	// config.Host = "15.14.12.153"
+	client, err := ssh.New(config)
+	// client, err := ssh.NewClient("localhost", "22", "root", "ubuntu")
+	if err != nil {
+		// panic(err)
+		fmt.Println("连接失败,按Enter键退出!")
+		fmt.Scanln()
+	}
+	defer client.Close()
+
+	err = client.Exec("sh /root/shetl/etl.sh")
+	if err != nil {
+		fmt.Println(err)
+		// panic(err)
+		fmt.Println("执行失败,按Enter键退出!")
+		fmt.Scanln()
+	}
+
+	// fmt.Printf("Uptime: %s\n", output)
+
+}
diff --git a/example/runetl/rc/icon.ico b/example/runetl/rc/icon.ico
new file mode 100644
index 0000000..3ba71ab
Binary files /dev/null and b/example/runetl/rc/icon.ico differ
diff --git a/example/runetl/rc/manifest.exe.manifest b/example/runetl/rc/manifest.exe.manifest
new file mode 100644
index 0000000..c7b0c6d
--- /dev/null
+++ b/example/runetl/rc/manifest.exe.manifest
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
+    <assemblyIdentity version="1.0.0.0" processorArchitecture="*" name="Hardentools" type="win32"/>
+    <dependency>
+        <dependentAssembly>
+            <assemblyIdentity type="win32" name="Microsoft.Windows.Common-Controls" version="6.0.0.0" processorArchitecture="*" publicKeyToken="6595b64144ccf1df" language="*"/>
+        </dependentAssembly>
+    </dependency>
+    <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+        <security>
+            <requestedPrivileges>
+                <requestedExecutionLevel level="asInvoker" uiAccess="false" />  
+                <!-- <requestedExecutionLevel level="requireAdministrator" uiAccess="false" />   -->
+                <!-- <requestedExecutionLevel level="highestAvailable" uiAccess="false" />   -->
+            </requestedPrivileges>
+        </security>
+    </trustInfo>
+</assembly>
\ No newline at end of file
diff --git a/example/runetl/rc/versioninfo.json b/example/runetl/rc/versioninfo.json
new file mode 100644
index 0000000..93b3b9a
--- /dev/null
+++ b/example/runetl/rc/versioninfo.json
@@ -0,0 +1,37 @@
+{
+    "FixedFileInfo": {
+        "FileVersion": {
+            "Major": 1,
+            "Minor": 2,
+            "Patch": 0,
+            "Build": 1
+        },
+        "FileFlagsMask": "3f",
+        "FileFlags ": "00",
+        "FileOS": "040004",
+        "FileType": "01",
+        "FileSubType": "00"
+    },
+    "StringFileInfo": { 
+        "Comments": "执行etl",
+        "CompanyName": "pytool",
+        "FileVersion": "",
+        "FileDescription": "执行数据同步etl",
+        "ProductName": "履职考评数据同步",
+        "ProductVersion": "2018.12.11",
+        "LegalCopyright": "Copyright@pytool",
+        "OriginalFilename": "etl.exe",
+        "InternalName": "",
+        "LegalTrademarks": "",
+        "PrivateBuild": "",
+        "SpecialBuild": ""
+    },
+    "VarFileInfo": {
+        "Translation": {
+            "LangID": "0409",
+            "CharsetID": "04B0"
+        }
+    },
+    "IconPath": "icon.ico",
+    "ManifestPath": ""
+}
\ No newline at end of file
diff --git a/cmd/main.go b/example/update/main.go
similarity index 100%
rename from cmd/main.go
rename to example/update/main.go
diff --git a/example/put/main.go b/example/upload/main.go
similarity index 100%
rename from example/put/main.go
rename to example/upload/main.go
diff --git a/sftp.go b/sftp.go
index 80bd23a..ebb477f 100644
--- a/sftp.go
+++ b/sftp.go
@@ -61,13 +61,13 @@ func (c *Client) downloadFile(remoteFile, local string) error {
 		rsum := c.Md5File(remoteFile)
 		ioutil.WriteFile(localFile+".md5", []byte(rsum), 755)
 		if FileExist(localFile) {
-			// 1. 检测远程是否存在
 			if rsum != "" {
 				lsum, _ := Md5File(localFile)
 				if lsum == rsum {
-					log.Println("sftp: 文件与本地一致，跳过上传！", localFile)
+					log.Println("sftp: 文件与本地一致，跳过下载！", localFile)
 					return nil
 				}
+				log.Println("sftp: 正在下载 ", localFile)
 			}
 		}
 	}
@@ -196,6 +196,7 @@ func (c *Client) UploadFile(localFile, remote string) error {
 				log.Println("sftp: 文件与本地一致，跳过上传！", localFile)
 				return nil
 			}
+			log.Println("sftp: 正在上传 ", localFile)
 		}
 	}
 
@@ -437,7 +438,7 @@ func (c *Client) Md5File(path string) string {
 	if c.IsNotExist(path) {
 		return ""
 	}
-	b, err := c.Run("md5sum " + path)
+	b, err := c.Output("md5sum " + path)
 	if err != nil {
 		return ""
 	}
diff --git a/ssh.go b/ssh.go
index 78d5644..f6770a2 100644
--- a/ssh.go
+++ b/ssh.go
@@ -1,30 +1,84 @@
 package ssh
 
 import (
+	"bufio"
+	"bytes"
+	"errors"
 	"fmt"
+	"io"
 	"path/filepath"
 )
 
-// Run Execute cmd on the remote host and return stderr and stdout
-func (c *Client) Run(cmd string) ([]byte, error) {
+// Run Execute cmd on the remote host for daemon service
+func (c *Client) Run(cmd string) {
 	session, err := c.SSHClient.NewSession()
 	if err != nil {
-		return nil, err
+		return
 	}
 	defer session.Close()
 
-	return session.CombinedOutput(cmd)
+	session.Start(cmd)
+	if err != nil {
+		fmt.Printf("exec command:%v error:%v\n", cmd, err)
+	}
+	fmt.Printf("Waiting for command:%v to finish...\n", cmd)
+	//阻塞等待fork出的子进程执行的结果，和cmd.Start()配合使用[不等待回收资源，会导致fork出执行shell命令的子进程变为僵尸进程]
+	err = session.Wait()
+	if err != nil {
+		fmt.Printf(":Command finished with error: %v\n", err)
+	}
+	return
 }
 
-//Exec Execute cmd on the remote host and return stderr and stdout
-func (c *Client) Exec(cmd string) ([]byte, error) {
+//Exec Execute cmd on the remote host and bind stderr and stdout
+func (c *Client) Exec(cmd string) error {
+	session, err := c.SSHClient.NewSession()
+	if err != nil {
+		return err
+	}
+	defer session.Close()
+	// session.Run(cmd)
+	// return session.CombinedOutput(cmd)
+	stdout, err := session.StdoutPipe()
+	// stderr, err = session.StderrPipe()
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+
+	var b bytes.Buffer
+	session.Stderr = &b
+	session.Start(cmd)
+	//创建一个流来读取管道内内容，这里逻辑是通过一行一行的读取的
+	reader := bufio.NewReader(stdout)
+
+	//实时循环读取输出流中的一行内容
+	for {
+		line, err2 := reader.ReadString('\n')
+		if err2 != nil || io.EOF == err2 {
+			break
+		}
+		print(line)
+	}
+
+	//阻塞直到该命令执行完成，该命令必须是被Start方法开始执行的
+	session.Wait()
+	if b.Len() > 0 {
+		return errors.New(b.String())
+	}
+	return nil
+}
+
+// Output Execute cmd on the remote host and return stderr and stdout
+func (c *Client) Output(cmd string) ([]byte, error) {
 	session, err := c.SSHClient.NewSession()
 	if err != nil {
 		return nil, err
 	}
 	defer session.Close()
-
-	return session.CombinedOutput(cmd)
+	// session.Run(cmd)
+	// return session.CombinedOutput(cmd)
+	return session.Output(cmd)
 }
 
 // RunScript Executes a shell script file on the remote machine.