aclchg (chacl)

chacl is a synonym for aclchg.

This command only applies in multiuser mode.

Default Keybindings



  • aclchg usernames permbits list
  • chacl usernames permbits list


Change permissions for a comma separated list of users. Permission bits are represented as 'r', 'w' and 'x'. Prefixing '+' grants the permission, '-' removes it. The third parameter is a comma separated list of commands and/or windows (specified either by number or title). The special list '#' refers to all windows, '?' to all commands. If usernames consists of a single '*', all known users are affected. A command can be executed when the user has the 'x' bit for it. The user can type input to a window when he has its 'w' bit set and no other user obtains a writelock for this window. Other bits are currently ignored. To withdraw the writelock from another user in window 2: 'aclchg username -w+w 2'. To allow read-only access to the session: 'aclchg username -w "#"'. As soon as a user's name is known to screen, the user can attach to the session and (per default) has full permissions for all command and windows. Execution permission for the acl commands, 'at' and others should also be removed or the user may be able to regain write permission. Rights of the special username nobody cannot be changed (see the ”su” command).


None yet.

See Also

commands/aclchg.txt · Last modified: 2016/04/13 22:50 by
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