|FLATPAK ENTER(1)||flatpak enter||FLATPAK ENTER(1)|
flatpak enter [OPTION...] INSTANCE COMMAND [ARG...]
INSTANCE must be either the pid of a process running in a flatpak sandbox, or the ID of a running application, or the instance ID of a running sandbox. You can use flatpak ps to find the instance IDs of running flatpaks.
COMMAND is the command to run in the sandbox. Extra arguments are passed on to the command.
This creates a new process within the running sandbox, with the same environment. This is useful when you want to debug a problem with a running application.
This command works as a regular user if the system support unprivileged user namespace. If that is not available you need to run run it like: sudo -E flatpak enter.