unit files

Unit files are configuration files used by the systemd system and service manager in Linux operating systems. They define how system services, sockets, and other resources are started and managed. Each unit file contains specific instructions, such as the command to run a service, dependencies on other services, and options for starting or stopping it. Essentially, unit files allow system administrators to control system behavior, manage services more efficiently, and ensure that important applications run correctly at startup or on demand. They're vital for maintaining the stability and performance of the operating system.