diff --git a/commands/helper.py b/commands/helper.py
index eea8b0e..d29df90 100755
--- a/commands/helper.py
+++ b/commands/helper.py
@@ -1,4 +1,5 @@
 import click
+import json
 
 from dataclasses import dataclass
 from pyotp import TOTP
@@ -11,6 +12,10 @@ class OTPCredentials:
     seed: str
 
     def get_json(self):
-        print(self.name, self.realm, self.seed)
         r = {"name": self.name, "realm": self.realm, "token": TOTP(self.seed).now()}
         return r
+
+
+def load_dump_pretty(content):
+    parsed = json.loads(content)
+    return json.dumps(parsed, indent=4, sort_keys=True)
\ No newline at end of file
diff --git a/commands/host.py b/commands/host.py
index ea6f9d0..24cf3da 100755
--- a/commands/host.py
+++ b/commands/host.py
@@ -3,7 +3,7 @@ import json
 import requests
 
 from decouple import config
-from .helper import OTPCredentials
+from .helper import OTPCredentials, load_dump_pretty
 
 
 @click.group()
@@ -12,9 +12,9 @@ def host():
 
 
 @host.command("add")
-@click.option("--name", required=True)
-@click.option("--realm", required=True)
-@click.option("--seed", required=True)
+@click.option("--name", envvar="OTP_NAME", required=True)
+@click.option("--realm", envvar="OTP_REALM", required=True)
+@click.option("--seed", envvar="OTP_SEED", required=True)
 @click.option("--specs", required=True)
 @click.option("--hostname", required=True)
 def add_host(name, realm, seed, specs, hostname):
@@ -26,5 +26,10 @@ def add_host(name, realm, seed, specs, hostname):
             "hostname": hostname,
         }
         r = requests.post(f"{config('UCLOUD_API_SERVER')}/host/create", json=data)
+        print(load_dump_pretty(r.content))
 
-        print(json.loads(r.content))
+
+@host.command("list")
+def list_host():
+    r = requests.get(f"{config('UCLOUD_API_SERVER')}/host/list")
+    print(load_dump_pretty(r.content))
\ No newline at end of file
diff --git a/commands/image.py b/commands/image.py
index 138bea2..9fcf860 100755
--- a/commands/image.py
+++ b/commands/image.py
@@ -3,7 +3,7 @@ import json
 import requests
 
 from decouple import config
-from .helper import OTPCredentials
+from .helper import OTPCredentials, load_dump_pretty
 
 
 @click.group()
@@ -17,7 +17,7 @@ def image():
 def list(public, private):
     if public:
         r = requests.get(f"{config('UCLOUD_API_SERVER')}/image/list-public")
-        print(json.loads(r.content))
+        print(load_dump_pretty(r.content))
 
 
 @image.command("create-from-file")
@@ -27,4 +27,4 @@ def list(public, private):
 def create_from_file(name, uuid, image_store_name):
     data = {"name": name, "uuid": uuid, "image_store": image_store_name}
     r = requests.post(f"{config('UCLOUD_API_SERVER')}/image/create", json=data)
-    print(r.content.decode("utf-8"))
+    print(load_dump_pretty(r.content))
diff --git a/commands/user.py b/commands/user.py
index 0fa79ab..cd23d31 100755
--- a/commands/user.py
+++ b/commands/user.py
@@ -3,7 +3,7 @@ import json
 import requests
 
 from decouple import config
-from .helper import OTPCredentials
+from .helper import OTPCredentials, load_dump_pretty
 
 
 @click.group()
@@ -11,21 +11,21 @@ def user():
     pass
 
 
-@user.command("list-files")
-@click.option("--name", required=True)
-@click.option("--realm", required=True)
-@click.option("--seed", required=True)
+@user.command("files")
+@click.option("--name", envvar="OTP_NAME", required=True)
+@click.option("--realm", envvar="OTP_REALM", required=True)
+@click.option("--seed", envvar="OTP_SEED", required=True)
 def list_files(name, realm, seed):
     data = OTPCredentials(name, realm, seed).get_json()
     r = requests.get(f"{config('UCLOUD_API_SERVER')}/user/files", json=data)
-    print(json.loads(r.content))
+    print(load_dump_pretty(r.content))
 
 
-@user.command("list-vms")
-@click.option("--name", required=True)
-@click.option("--realm", required=True)
-@click.option("--seed", required=True)
+@user.command("vms")
+@click.option("--name", envvar="OTP_NAME", required=True)
+@click.option("--realm", envvar="OTP_REALM", required=True)
+@click.option("--seed", envvar="OTP_SEED", required=True)
 def list_vms(name, realm, seed):
     data = OTPCredentials(name, realm, seed).get_json()
     r = requests.get(f"{config('UCLOUD_API_SERVER')}/user/vms", json=data)
-    print(json.loads(r.content))
+    print(load_dump_pretty(r.content))
diff --git a/commands/vm.py b/commands/vm.py
index a873396..0a3b055 100755
--- a/commands/vm.py
+++ b/commands/vm.py
@@ -3,7 +3,7 @@ import json
 import requests
 
 from decouple import config
-from .helper import OTPCredentials
+from .helper import OTPCredentials, load_dump_pretty
 
 
 def vm_command(command, otp, uuid):
@@ -18,9 +18,9 @@ def vm():
 
 
 @vm.command("create")
-@click.option("--name", required=True)
-@click.option("--realm", required=True)
-@click.option("--seed", required=True)
+@click.option("--name", envvar="OTP_NAME", required=True)
+@click.option("--realm", envvar="OTP_REALM", required=True)
+@click.option("--seed", envvar="OTP_SEED", required=True)
 @click.option("--specs", required=True)
 @click.option("--image_uuid", required=True)
 def create(name, realm, seed, specs, image_uuid):
@@ -32,26 +32,42 @@ def create(name, realm, seed, specs, image_uuid):
             "image_uuid": image_uuid,
         }
         r = requests.post(f"{config('UCLOUD_API_SERVER')}/vm/create", json=data)
-        print(json.loads(r.content))
+        print(load_dump_pretty(r.content))
 
 
 @vm.command("action")
-@click.option("--name", required=True)
-@click.option("--realm", required=True)
-@click.option("--seed", required=True)
+@click.option("--name", envvar="OTP_NAME", required=True)
+@click.option("--realm", envvar="OTP_REALM", required=True)
+@click.option("--seed", envvar="OTP_SEED", required=True)
 @click.option("--uuid", required=True)
 @click.option("--command", required=True)
 def vm_action(name, realm, seed, uuid, command):
     r = vm_command(command, OTPCredentials(name, realm, seed), uuid)
-    print(json.loads(r.content))
+    print(load_dump_pretty(r.content))
 
 
 @vm.command("status")
-@click.option("--name", required=True)
-@click.option("--realm", required=True)
-@click.option("--seed", required=True)
+@click.option("--name", envvar="OTP_NAME", required=True)
+@click.option("--realm", envvar="OTP_REALM", required=True)
+@click.option("--seed", envvar="OTP_SEED", required=True)
 @click.option("--uuid", required=True)
 def status(name, realm, seed, uuid):
     data = {"name": name, "realm": realm, "seed": seed, "uuid": uuid}
     r = requests.get(f"{config('UCLOUD_API_SERVER')}/vm/status", json=data)
-    print(json.loads(r.content))
+    print(load_dump_pretty(r.content))
+
+@vm.command("migrate")
+@click.option("--name", envvar="OTP_NAME", required=True)
+@click.option("--realm", envvar="OTP_REALM", required=True)
+@click.option("--seed", envvar="OTP_SEED", required=True)
+@click.option("--uuid", required=True)
+@click.option("--destination", required=True)
+def vm_migration(name, realm, seed, uuid, destination):
+    otp = OTPCredentials(name, realm, seed)
+    data = {
+        **otp.get_json(),
+        "uuid": uuid,
+        "destination": destination
+    }
+    r = requests.post(f"{config('UCLOUD_API_SERVER')}/vm/migrate", json=data)
+    print(load_dump_pretty(r.content))
\ No newline at end of file