-'''{{{-d -r}}}''' Reattach a session and if necessary detach it first.[[BR]]
-'''{{{-d -R}}}''' Reattach a session and if necessary detach or even create it first.[[BR]]
-'''{{{-d -RR}}}''' Reattach a session and if necessary detach or create it. Use the first session if more than one session is available.[[BR]]
-'''{{{-D -r}}}''' Reattach a session. If necessary detach and logout remotely first.[[BR]]
-'''{{{-D -R}}}''' Attach here and now. In detail this means: If a session is running, then reattach. If necessary detach and logout remotely first. If it was not running create it and notify the user.[[BR]]
-'''{{{-D -RR}}}''' Attach here and now. Whatever that means, just do it.[[BR]]
-'''{{{-x}}}''' Attach to a not detached screen session. (Multi display mode).[[BR]]