diff --git a/README.md b/README.md
index 31ba595..47bb964 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ The mdrs-client-python is python library and a command-line client for up- and d
 
 ## Installing
 
-```
+```shell
 poetry install
 ```
 
@@ -14,141 +14,143 @@ poetry install
 
 Create remote host configuration
 
-```
-$ mdrs config create neurodata https://neurodata.riken.jp/api
+```shell
+mdrs config create neurodata https://neurodata.riken.jp/api
 ```
 
 ### login
 
 Login to remote host
 
-```
-$ mdrs login neurodata:
+```shell
+mdrs login neurodata:
 Username: (enter your login name)
 Password: (enter your password)
+
+mdrs login -u USERNAME -p PASSWORD neurodata:
 ```
 
 ### logout
 
 Logout from remote host
 
-```
-$ mdrs logout neurodata:
+```shell
+mdrs logout neurodata:
 ```
 
 ### whoami
 
 Print current user name
 
-```
-$ mdrs whoami neurodata:
+```shell
+mdrs whoami neurodata:
 ```
 
 ### labs
 
 List all laboratories
 
-```
-$ mdrs labs neurodata:
+```shell
+mdrs labs neurodata:
 ```
 
 ### ls
 
 List the folder contents
 
-```
-$ mdrs ls neurodata:/NIU/Repository/
-$ mdrs ls -p PW_OPEN_PASSWORD neurodata:/NIU/Repository/PW_Open/
-$ mdrs ls -r neurodata:/NIU/Repository/Dataset1/
-$ mdrs ls -J -r neurodata:/NIU/Repository/Dataset1/
+```shell
+mdrs ls neurodata:/NIU/Repository/
+mdrs ls -p PW_OPEN_PASSWORD neurodata:/NIU/Repository/PW_Open/
+mdrs ls -r neurodata:/NIU/Repository/Dataset1/
+mdrs ls -J -r neurodata:/NIU/Repository/Dataset1/
 ```
 
 ### mkdir
 
 Create a new folder
 
-```
-$ mdrs mkdir neurodata:/NIU/Repository/TEST
+```shell
+mdrs mkdir neurodata:/NIU/Repository/TEST
 ```
 
 ### upload
 
 Upload the file or directory
 
-```
-$ mdrs upload ./sample.dat neurodata:/NIU/Repository/TEST/
-$ mdrs upload -r ./dataset neurodata:/NIU/Repository/TEST/
+```shell
+mdrs upload ./sample.dat neurodata:/NIU/Repository/TEST/
+mdrs upload -r ./dataset neurodata:/NIU/Repository/TEST/
 ```
 
 ### download
 
 Download the file or folder
 
-```
-$ mdrs download neurodata:/NIU/Repository/TEST/sample.dat ./
-$ mdrs download -r neurodata:/NIU/Repository/TEST/dataset/ ./
-$ mdrs download -p PW_OPEN_PASSWORD neurodata:/NIU/Repository/PW_Open/Readme.dat ./
+```shell
+mdrs download neurodata:/NIU/Repository/TEST/sample.dat ./
+mdrs download -r neurodata:/NIU/Repository/TEST/dataset/ ./
+mdrs download -p PW_OPEN_PASSWORD neurodata:/NIU/Repository/PW_Open/Readme.dat ./
 ```
 
 ### mv
 
 Move or rename the file or folder
 
-```
-$ mdrs mv neurodata:/NIU/Repository/TEST/sample.dat neurodata:/NIU/Repository/TEST2/sample2.dat
-$ mdrs mv neurodata:/NIU/Repository/TEST/dataset neurodata:/NIU/Repository/TEST2/
+```shell
+mdrs mv neurodata:/NIU/Repository/TEST/sample.dat neurodata:/NIU/Repository/TEST2/sample2.dat
+mdrs mv neurodata:/NIU/Repository/TEST/dataset neurodata:/NIU/Repository/TEST2/
 ```
 
 ### cp
 
 Copy the file and folder
 
-```
-$ mdrs cp neurodata:/NIU/Repository/TEST/sample.dat neurodata:/NIU/Repository/TEST2/sample2.dat
-$ mdrs cp -r neurodata:/NIU/Repository/TEST/dataset neurodata:/NIU/Repository/TEST2/
+```shell
+mdrs cp neurodata:/NIU/Repository/TEST/sample.dat neurodata:/NIU/Repository/TEST2/sample2.dat
+mdrs cp -r neurodata:/NIU/Repository/TEST/dataset neurodata:/NIU/Repository/TEST2/
 ```
 
 ### rm
 
 Remove the file or folder
 
-```
-$ mdrs rm neurodata:/NIU/Repository/TEST2/sample2.dat
-$ mdrs rm -r neurodata:/NIU/Repository/TEST2/dataset
+```shell
+mdrs rm neurodata:/NIU/Repository/TEST2/sample2.dat
+mdrs rm -r neurodata:/NIU/Repository/TEST2/dataset
 ```
 
 ### chacl
 
 Change the folder access level
 
-```
-$ mdrs chacl private neurodata:/NIU/Repository/Private
-$ mdrs chacl cbs_open -r neurodata:/NIU/Repository/CBS_Open
-$ mdrs chacl pw_open -r -p FOLDER_PASSWORD neurodata:/NIU/Repository/PW_Open
+```shell
+mdrs chacl private neurodata:/NIU/Repository/Private
+mdrs chacl cbs_open -r neurodata:/NIU/Repository/CBS_Open
+mdrs chacl pw_open -r -p FOLDER_PASSWORD neurodata:/NIU/Repository/PW_Open
 ```
 
 ### metadata
 
 Get a folder metadata
 
-```
-$ mdrs metadata neurodata:/NIU/Repository/TEST/
-$ mdrs metadata -p PW_OPEN_PASSWORD neurodata:/NIU/Repository/PW_Open/
+```shell
+mdrs metadata neurodata:/NIU/Repository/TEST/
+mdrs metadata -p PW_OPEN_PASSWORD neurodata:/NIU/Repository/PW_Open/
 ```
 
 ### file-metadata
 
 Get the file metadata
 
-```
-$ mdrs file-metadata neurodata:/NIU/Repository/TEST/dataset/sample.dat
-$ mdrs file-metadata -p PW_OPEN_PASSWORD neurodata:/NIU/Repository/PW_Open/Readme.txt
+```shell
+mdrs file-metadata neurodata:/NIU/Repository/TEST/dataset/sample.dat
+mdrs file-metadata -p PW_OPEN_PASSWORD neurodata:/NIU/Repository/PW_Open/Readme.txt
 ```
 
 ### help
 
 Show the help message and exit
 
-```
-$ mdrs -h
+```shell
+mdrs -h
 ```
diff --git a/mdrsclient/commands/login.py b/mdrsclient/commands/login.py
index f5db3a4..738855f 100644
--- a/mdrsclient/commands/login.py
+++ b/mdrsclient/commands/login.py
@@ -13,14 +13,16 @@ class LoginCommand(BaseCommand):
     @classmethod
     def register(cls, parsers: Any) -> None:
         login_parser = parsers.add_parser("login", help="login to remote host")
+        login_parser.add_argument("-u", "--username", help="login username")
+        login_parser.add_argument("-p", "--password", help="login password")
         login_parser.add_argument("remote", help="label of remote host")
         login_parser.set_defaults(func=cls.func)
 
     @classmethod
     def func(cls, args: Namespace) -> None:
         remote = str(args.remote)
-        username = input("Username: ").strip()
-        password = getpass.getpass("Password: ").strip()
+        username = str(args.username) if args.password else input("Username: ").strip()
+        password = str(args.password) if args.password else getpass.getpass("Password: ").strip()
         cls.login(remote, username, password)
 
     @classmethod
diff --git a/pyproject.toml b/pyproject.toml
index 6b75aaf..c834cb5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "mdrs-client-python"
-version = "1.3.1"
+version = "1.3.2"
 description = "The mdrs-client-python is python library and a command-line client for up- and downloading files to and from MDRS based repository."
 authors = ["Yoshihiro OKUMURA <yoshihiro.okumura@riken.jp>"]
 license = "MIT"
@@ -30,8 +30,8 @@ PyJWT = "^2.8.0"
 validators = "^0.22.0"
 
 [tool.poetry.group.dev.dependencies]
-black = "^23.12.0"
-flake8 = "^6.1.0"
+black = "^24.1.1"
+flake8 = "^7.0.0"
 Flake8-pyproject = "^1.2.3"
 isort = "^5.13.0"
 pyright = "^1.1.339"