diff --git a/README.md b/README.md
index 6aa83f1..0623083 100644
--- a/README.md
+++ b/README.md
@@ -14,27 +14,35 @@ go get -u github.com/studio-b12/gowebdav/cmd/gowebdav
 ## Usage
 
 ```sh
-$ gowebdav
 Usage: gowebdav FLAGS ARGS
 Flags:
   -X string
-        Method ... (default "GET")
+        Method (default "GET")
   -pw string
-        password
+        Password [ENV.PASSWORD]
   -root string
-        WebDAV Endpoint (default "URL")
+        WebDAV Endpoint [ENV.ROOT]
   -user string
-        user
+        User [ENV.USER]
 Method <ARGS>
  LS | LIST | PROPFIND <PATH>
+ STAT <PATH>
  RM | DELETE | DEL <PATH>
  MKDIR | MKCOL <PATH>
  MKDIRALL | MKCOLALL <PATH>
  MV | MOVE | RENAME <OLD_PATH> <NEW_PATH>
  CP | COPY <OLD_PATH> <NEW_PATH>
- GET | PULL | READ <PATH>
+ GET | PULL | READ <PATH> <FILE>
  PUT | PUSH | WRITE <PATH> <FILE>
- STAT <PATH>
+```
+
+*Example*
+
+```sh
+ROOT="https://webdav.server/" \
+USER="foo" \
+PASSWORD="bar" \
+./gowebdav -X LS /
 ```
 
 ## LINKS
diff --git a/cmd/gowebdav/main.go b/cmd/gowebdav/main.go
index 042921a..b8e5bdc 100644
--- a/cmd/gowebdav/main.go
+++ b/cmd/gowebdav/main.go
@@ -13,20 +13,6 @@ import (
 func fail(err interface{}) {
 	if err != nil {
 		fmt.Println(err)
-	} else {
-		fmt.Println("Usage: gowebdav FLAGS ARGS")
-		fmt.Println("Flags:")
-		flag.PrintDefaults()
-		fmt.Println("Method <ARGS>")
-		fmt.Println(" LS | LIST | PROPFIND <PATH>")
-		fmt.Println(" RM | DELETE | DEL <PATH>")
-		fmt.Println(" MKDIR | MKCOL <PATH>")
-		fmt.Println(" MKDIRALL | MKCOLALL <PATH>")
-		fmt.Println(" MV | MOVE | RENAME <OLD_PATH> <NEW_PATH>")
-		fmt.Println(" CP | COPY <OLD_PATH> <NEW_PATH>")
-		fmt.Println(" GET | PULL | READ <PATH>")
-		fmt.Println(" PUT | PUSH | WRITE <PATH> <FILE>")
-		fmt.Println(" STAT <PATH>")
 	}
 	os.Exit(-1)
 }
@@ -42,118 +28,128 @@ func writeFile(path string, bytes []byte, mode os.FileMode) error {
 	return err
 }
 
+func getCmd(method string) func(c *d.Client, p0, p1 string) error {
+	switch method {
+	case "LS", "LIST", "PROPFIND":
+		return func(c *d.Client, p0, p1 string) (err error) {
+			files, err := c.ReadDir(p0)
+			if err == nil {
+				fmt.Println(fmt.Sprintf("ReadDir: '%s' entries: %d ", p0, len(files)))
+				for _, f := range files {
+					fmt.Println(f)
+				}
+			}
+			return
+		}
+
+	case "STAT":
+		return func(c *d.Client, p0, p1 string) (err error) {
+			file, err := c.Stat(p0)
+			if err == nil {
+				fmt.Println(file)
+			}
+			return
+		}
+
+	case "GET", "PULL", "READ":
+		return func(c *d.Client, p0, p1 string) (err error) {
+			bytes, err := c.Read(p0)
+			if err == nil {
+				if err = writeFile(p1, bytes, 0644); err == nil {
+					fmt.Println(fmt.Sprintf("Written %d bytes to: %s", len(bytes), p1))
+				}
+			}
+			return
+		}
+
+	case "DELETE", "RM", "DEL":
+		return func(c *d.Client, p0, p1 string) (err error) {
+			if err = c.Remove(p0); err == nil {
+				fmt.Println("RM: " + p0)
+			}
+			return
+		}
+
+	case "MKCOL", "MKDIR":
+		return func(c *d.Client, p0, p1 string) (err error) {
+			if err = c.Mkdir(p0, 0755); err == nil {
+				fmt.Println("MkDir: " + p0)
+			}
+			return
+		}
+
+	case "MKCOLALL", "MKDIRALL":
+		return func(c *d.Client, p0, p1 string) (err error) {
+			if err = c.MkdirAll(p0, 0755); err == nil {
+				fmt.Println("MkDirAll: " + p0)
+			}
+			return
+		}
+
+	case "RENAME", "MV", "MOVE":
+		return func(c *d.Client, p0, p1 string) (err error) {
+			if err = c.Rename(p0, p1, true); err == nil {
+				fmt.Println("Rename: " + p0 + " -> " + p1)
+			}
+			return
+		}
+
+	case "COPY", "CP":
+		return func(c *d.Client, p0, p1 string) (err error) {
+			if err = c.Copy(p0, p1, true); err == nil {
+				fmt.Println("Copy: " + p0 + " -> " + p1)
+			}
+			return
+		}
+
+	case "PUT", "PUSH", "WRITE":
+		return func(c *d.Client, p0, p1 string) (err error) {
+			stream, err := getStream(p1)
+			if err == nil {
+				if err = c.WriteStream(p0, stream, 0644); err == nil {
+					fmt.Println(fmt.Sprintf("Put: '%s' -> %s", p1, p0))
+				}
+			}
+			return
+		}
+
+	default:
+		return func(c *d.Client, p0, p1 string) (err error) {
+			return errors.New("Unsupported method: " + method)
+		}
+	}
+}
+
 func main() {
-	root := flag.String("root", "URL", "WebDAV Endpoint")
-	usr := flag.String("user", "", "user")
-	pw := flag.String("pw", "", "password")
-	m := flag.String("X", "GET", "Method ...")
+	root := flag.String("root", os.Getenv("ROOT"), "WebDAV Endpoint [ENV.ROOT]")
+	usr := flag.String("user", os.Getenv("USER"), "User [ENV.USER]")
+	pw := flag.String("pw", os.Getenv("PASSWORD"), "Password [ENV.PASSWORD]")
+	m := flag.String("X", "GET", "Method")
 	flag.Parse()
 
-	if *root == "URL" {
-		fail(nil)
+	if *root == "" {
+		fail("Set WebDAV ROOT")
 	}
 
-	M := strings.ToUpper(*m)
-	m = &M
+	var path0, path1 string
+	switch len(flag.Args()) {
+	case 1:
+		path0 = flag.Args()[0]
+	case 2:
+		path1 = flag.Args()[1]
+	default:
+		fail("Unsupported arguments")
+	}
 
 	c := d.NewClient(*root, *usr, *pw)
 	if err := c.Connect(); err != nil {
 		fail(fmt.Sprintf("Failed to connect due to: %s", err.Error()))
 	}
-	alen := len(flag.Args())
-	if alen == 1 {
-		path := flag.Args()[0]
-		switch *m {
-		case "LS", "LIST", "PROPFIND":
-			if files, err := c.ReadDir(path); err == nil {
-				fmt.Println(fmt.Sprintf("ReadDir: '%s' entries: %d ", path, len(files)))
-				for _, f := range files {
-					fmt.Println(f)
-				}
-			} else {
-				fmt.Println(err)
-			}
 
-		case "STAT":
-			if file, err := c.Stat(path); err == nil {
-				fmt.Println(file)
-			} else {
-				fmt.Println(err)
-			}
+	cmd := getCmd(strings.ToUpper(*m))
 
-		case "GET", "PULL", "READ":
-			if bytes, err := c.Read(path); err == nil {
-				if lidx := strings.LastIndex(path, "/"); lidx != -1 {
-					path = path[lidx+1:]
-				}
-				if err := writeFile(path, bytes, 0644); err != nil {
-					fmt.Println(err)
-				} else {
-					fmt.Println(fmt.Sprintf("Written %d bytes to: %s", len(bytes), path))
-				}
-			} else {
-				fmt.Println(err)
-			}
-
-		case "DELETE", "RM", "DEL":
-			if err := c.Remove(path); err != nil {
-				fmt.Println(err)
-			} else {
-				fmt.Println("Remove: " + path)
-			}
-
-		case "MKCOL", "MKDIR":
-			if err := c.Mkdir(path, 0); err != nil {
-				fmt.Println(err)
-			} else {
-				fmt.Println("MkDir: " + path)
-			}
-
-		case "MKCOLALL", "MKDIRALL":
-			if err := c.MkdirAll(path, 0); err != nil {
-				fmt.Println(err)
-			} else {
-				fmt.Println("MkDirAll: " + path)
-			}
-
-		default:
-			fail(nil)
-		}
-
-	} else if alen == 2 {
-		a0 := flag.Args()[0]
-		a1 := flag.Args()[1]
-		switch *m {
-		case "RENAME", "MV", "MOVE":
-			if err := c.Rename(a0, a1, true); err != nil {
-				fmt.Println(err)
-			} else {
-				fmt.Println("Rename: " + a0 + " -> " + a1)
-			}
-
-		case "COPY", "CP":
-			if err := c.Copy(a0, a1, true); err != nil {
-				fmt.Println(err)
-			} else {
-				fmt.Println("Copy: " + a0 + " -> " + a1)
-			}
-
-		case "PUT", "PUSH", "WRITE":
-			stream, err := getStream(a1)
-			if err != nil {
-				fail(err)
-			}
-			if err := c.WriteStream(a0, stream, 0644); err != nil {
-				fmt.Println(err)
-			} else {
-				fmt.Println(fmt.Sprintf("Written: '%s' -> %s", a1, a0))
-			}
-
-		default:
-			fail(nil)
-		}
-	} else {
-		fail(nil)
+	if e := cmd(c, path0, path1); e != nil {
+		fail(e)
 	}
 }