flatpak Developer Alexander Larsson alexl@redhat.com flatpak enter 1 flatpak-enter Enter an application or runtime's sandbox flatpak enter OPTION INSTANCE COMMAND ARG Enter a running sandbox. 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. The following options are understood: -h --help Show help options and exit. -v --verbose Print debug information during command processing. --ostree-verbose Print OSTree debug information during command processing. $ flatpak enter 15345 sh flatpak1, flatpak-run1 flatpak-ps1