sup

Sup is a command-line tool for managing a set of related processes as a single entity. It is primarily designed for use with Unix-based systems.

One of the key features of sup is its ability to start, stop, and restart a group of processes in a coordinated manner. This makes it useful in situations where multiple processes need to be managed together, such as in a distributed system.

Sup can be used to define a set of supervised processes in a configuration file, specifying how they should be started, stopped, and monitored. It provides a simple and flexible syntax for defining these processes, including the ability to specify dependencies between them.

Sup also comes with a built-in process monitoring feature that can automatically restart a process if it fails. This helps ensure the continuity and reliability of the supervised processes.

Furthermore, sup provides a powerful command-line interface for managing the supervised processes. It allows users to start, stop, restart, and check the status of the processes with ease.

Sup provides tight integration with the system init process, enabling it to be easily integrated into the system startup process.

Additionally, sup can be configured to send alerts or notifications when processes fail or are restarted. This allows for proactive monitoring and troubleshooting of the supervised processes.

Sup is written in Erlang, which gives it excellent fault tolerance and scalability. It leverages the lightweight concurrency model of Erlang to efficiently manage multiple processes.

Being open-source, sup has an active community of users and contributors, providing ongoing support and development. It is available under the MIT license, making it free to use and modify.

Overall, sup is a reliable and flexible command-line tool for managing a group of related processes in Unix-based systems, providing process coordination, monitoring, and fault tolerance capabilities.