rstart

rstart [command]

command
    The command to be executed after the system restarts.

The `rstart` command, though less common than utilities like `systemd`, aims to execute specified commands after a system reboot or restart. It provides a mechanism for ensuring that certain processes or scripts are automatically initiated when the system comes back online.

The primary benefit is automating post-reboot tasks, such as starting services, cleaning up temporary files, or running maintenance scripts. The exact implementation and method of persistence vary between different distributions and specific rstart implementations, but typically involve modifying or creating system startup scripts or using configuration files recognized by system initialization processes.

Unlike some more robust init systems, `rstart` might lack fine-grained control over dependency management or service monitoring. The way `rstart` is triggered after a reboot relies on the system's boot processes, which can differ substantially. Therefore, configuration requires understanding the specific init system in use. Because of that the usage can be tricky and distributions do not come with `rstart` out-of-the-box.

The availability and functionality of `rstart` can vary significantly between Linux distributions. It is not a standard command and might not be included in all systems. Some modern systems favor `systemd` and its services to configure commands that must be running during and after startup.

Different implementations of `rstart` may store commands in different locations, like `/etc/rc.local` (on older SysVinit systems) or a dedicated configuration file. Understanding where the command is stored and how it's executed is crucial for proper configuration.

systemd(1), cron(1), at(1)