# nsenter > Run a new command in a running process' namespace. > Particularly useful for docker images or chroot jails. > More information: . - Run a specific command using the same namespaces as an existing process: `nsenter --target {{pid}} --all {{command}} {{command_arguments}}` - Run a specific command in an existing process's network namespace: `nsenter --target {{pid}} --net {{command}} {{command_arguments}}` - Run a specific command in an existing process's PID namespace: `nsenter --target {{pid}} --pid {{command}} {{command_arguments}}` - Run a specific command in an existing process's IPC namespace: `nsenter --target {{pid}} --ipc {{command}} {{command_arguments}}`