nodemon

Execute the specified file and watch a specific file for changes

$ nodemon [path/to/file.js]

$ rs

$ nodemon --ignore [path/to/file_or_directory]

$ nodemon [path/to/file.js] [arguments]

$ nodemon [arguments] [path/to/file.js]

$ nodemon --exec "[command_to_run_script] [options]" [path/to/script]

$ nodemon --exec "python [options]" [path/to/file.py]

nodemon [options] [script.js] [arguments]

script.js
    The Node.js script to execute. If omitted, nodemon will try to use the main property in package.json or index.js

arguments
    Arguments passed to the script.js when it's executed.

-v, --version
    Show version number.

-h, --help
    Show help information.

-c, --config <path>
    Specify a custom nodemon.json configuration file.

-w, --watch <glob|file|dir>
    A file, glob, or directory to watch for changes. Multiple paths can be specified.

-i, --ignore <glob|file|dir>
    A file, glob, or directory to ignore. Multiple paths can be specified.

-x, --exec <command>
    The command to execute instead of `node`. E.g., `--exec python`.

-e, --ext <extensions>
    File extensions to watch (default: js,mjs,cjs,json).

-V, --verbose
    Show all system details on startup.

-q, --quiet
    Suppress all output except error messages.

--delay <time>
    Delay restart in milliseconds (default: 1000ms).

--exitcrash
    Exit immediately if the script crashes.

--legacy-watch
    Use legacy watch for file system changes.

Nodemon is a command-line utility that automatically restarts your Node.js application whenever it detects changes in the file system. This eliminates the need to manually restart the server after each code modification, significantly improving developer productivity. It's particularly useful during development and testing. Nodemon monitors the directory containing your script and restarts the process if any file within that directory changes. It also supports configuration files to customize the monitored files, ignored directories, and restart behavior. It's easily installed via npm and can be used as a simple drop-in replacement for the `node` command when starting your application.

Nodemon supports configuration via a nodemon.json file. This file allows you to specify which files to watch, which files to ignore, and other settings. It can simplify command-line arguments.

When nodemon restarts your script, it sends a SIGTERM signal to the previous process. This allows your application to gracefully shut down before the new process starts.

node(1), npm(1)