forever

Forever is a command line tool used for running a script or application continuously. Its purpose is to ensure that a script or application remains running indefinitely, even after it encounters an error or crashes. The tool is highly popular among developers and system administrators who wish to keep their applications or services operational without manual intervention.

Forever works by monitoring the specified script or application and automatically restarting it if it terminates. This feature is particularly useful for long-running processes, such as web servers or background workers. It saves developers from the hassle of manually restarting the application every time it fails.

Forever supports multiple scripting languages, including Node.js, Python, Ruby, and more. It allows developers to start and manage any script as a background process. By default, it logs all script output to a log file, making it easier to debug any issues that arise.

Furthermore, Forever provides various options for managing the script's execution, such as setting the minimum uptime, maximum restarts, error logs, and controlling the working directory. It also offers a CLI (Command Line Interface) for managing the running processes, allowing users to monitor and interact with them easily.

Overall, Forever is a valuable tool for ensuring the continuous and reliable operation of scripts and applications, enabling developers to focus on other tasks instead of constant monitoring and manual restarts.