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(screen.info)Multiuser Session

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Multiuser Session
=================

   These commands allow other users to gain access to one single
`screen' session. When attaching to a multiuser `screen' the
sessionname is specified as `username/sessionname' to the `-S' command
line option.  `Screen' must be compiled with multiuser support to
enable features described here.

Multiuser

Enable / Disable multiuser mode.

Acladd

Enable a specific user.

Aclchg

Change a users permissions.

Acldel

Disable a specific user.

Aclgrp

Grant a user permissions to other users.

Displays

List all active users at their displays.

Umask

Predefine access to new windows.

Wall

Write a message to all users.

Writelock

Grant exclusive window access.

Su

Substitute user.