The Jupyter Server.

This launches a Tornado-based Jupyter Server.

Subcommands
===========
Subcommands are launched as `jupyter-server cmd [args]`. For information on
using subcommand 'cmd', do: `jupyter-server cmd -h`.

list
    List currently running Jupyter servers.
stop
    Stop currently running Jupyter server for a given port
password
    Set a password for the Jupyter server.
extension
    Work with Jupyter server extensions

Options
=======
The options below are convenience aliases to configurable class-options,
as listed in the "Equivalent to" description-line of the aliases.
To see all configurable class-options for some <cmd>, use:
    <cmd> --help-all

--debug
    Set debug level for the extension and underlying server applications.
    Equivalent to: [--ServerApp.log_level=DEBUG --ExtensionApp.log_level=DEBUG]
--show-config
    Show the application's configuration (human-readable format)
    Equivalent to: [--Application.show_config=True]
--show-config-json
    Show the application's configuration (json format)
    Equivalent to: [--Application.show_config_json=True]
--generate-config
    generate default config file
    Equivalent to: [--JupyterApp.generate_config=True]
-y
    Answer yes to any questions instead of prompting.
    Equivalent to: [--JupyterApp.answer_yes=True]
--allow-root
    Allow the server to be run from root user.
    Equivalent to: [--ServerApp.allow_root=True]
--no-browser
    Prevent the opening of the default url in the browser.
    Equivalent to: [--ServerApp.open_browser=False --ExtensionApp.open_browser=False]
--autoreload
    Autoreload the webapp
        Enable reloading of the tornado webapp and all imported Python packages
        when any changes are made to any Python src files in server or
        extensions.
    Equivalent to: [--ServerApp.autoreload=True]
--script
    DEPRECATED, IGNORED
    Equivalent to: [--FileContentsManager.save_script=True]
--no-script
    DEPRECATED, IGNORED
    Equivalent to: [--FileContentsManager.save_script=False]
--log-level=<Enum>
    Set the log level by value or name.
    Choices: any of [0, 10, 20, 30, 40, 50, 'DEBUG', 'INFO', 'WARN', 'ERROR', 'CRITICAL']
    Default: 30
    Equivalent to: [--Application.log_level]
--config=<Unicode>
    Full path of a config file.
    Default: ''
    Equivalent to: [--JupyterApp.config_file]
--ip=<Unicode>
    The IP address the Jupyter server will listen on.
    Default: 'localhost'
    Equivalent to: [--ServerApp.ip]
--port=<Int>
    The port the server will listen on (env: JUPYTER_PORT).
    Default: 0
    Equivalent to: [--ServerApp.port]
--port-retries=<Int>
    The number of additional ports to try if the specified port is not available
    (env: JUPYTER_PORT_RETRIES).
    Default: 50
    Equivalent to: [--ServerApp.port_retries]
--sock=<Unicode>
    The UNIX socket the Jupyter server will listen on.
    Default: ''
    Equivalent to: [--ServerApp.sock]
--sock-mode=<Unicode>
    The permissions mode for UNIX socket creation (default: 0600).
    Default: '0600'
    Equivalent to: [--ServerApp.sock_mode]
--transport=<CaselessStrEnum>
    Choices: any of ['tcp', 'ipc'] (case-insensitive)
    Default: 'tcp'
    Equivalent to: [--KernelManager.transport]
--keyfile=<Unicode>
    The full path to a private key file for usage with SSL/TLS.
    Default: ''
    Equivalent to: [--ServerApp.keyfile]
--certfile=<Unicode>
    The full path to an SSL/TLS certificate file.
    Default: ''
    Equivalent to: [--ServerApp.certfile]
--client-ca=<Unicode>
    The full path to a certificate authority certificate for SSL/TLS client
    authentication.
    Default: ''
    Equivalent to: [--ServerApp.client_ca]
--notebook-dir=<Unicode>
    The directory to use for notebooks and kernels.
    Default: ''
    Equivalent to: [--ServerApp.root_dir]
--preferred-dir=<Unicode>
    Preferred starting directory to use for notebooks and kernels.
    ServerApp.preferred_dir is deprecated in jupyter-server 2.0. Use
    FileContentsManager.preferred_dir instead
    Default: ''
    Equivalent to: [--ServerApp.preferred_dir]
--browser=<Unicode>
    Specify what command to use to invoke a web browser when starting the
    server. If not specified, the default browser will be determined by the
    `webbrowser` standard library module, which allows setting of the BROWSER
    environment variable to override it.
    Default: ''
    Equivalent to: [--ServerApp.browser]
--pylab=<Unicode>
    DISABLED: use %pylab or %matplotlib in the notebook to enable matplotlib.
    Default: 'disabled'
    Equivalent to: [--ServerApp.pylab]
--gateway-url=<Unicode>
    The url of the Kernel or Enterprise Gateway server where kernel
    specifications are defined and kernel management takes place. If defined,
    this Notebook server acts as a proxy for all kernel management and kernel
    specification retrieval.  (JUPYTER_GATEWAY_URL env var)
    Default: None
    Equivalent to: [--GatewayClient.url]

Examples
--------

    jupyter server                       # start the server
    jupyter server  --certfile=mycert.pem # use SSL/TLS certificate
    jupyter server password              # enter a password to protect the server

To see all available configurables, use `--help-all`.