# systemd-nspawn > Spawn a command or OS in a lightweight container. > More information: . - Run a command in a container: `systemd-nspawn --directory {{path/to/container_root}}` - Run a full Linux-based OS in a container: `systemd-nspawn --boot --directory {{path/to/container_root}}` - Run the specified command as PID 2 in the container (as opposed to PID 1) using a stub init process: `systemd-nspawn --directory {{path/to/container_root}} --as-pid2` - Specify the machine name and hostname: `systemd-nspawn --machine={{container_name}} --hostname={{container_host}} --directory {{path/to/container_root}}`