usersbygroup module
  Introduction


  This module is used to create restricted views of the user accounts
  list. Co-administrators may be granted the ability to manage those
  users sets.

  1.  Principles

  To define a new view, you must visit the menu "Configure special
  groups" at the end of the policies section of the user account menu.
  You are presented with a list (originally empty) of configured groups.
  Use the Add button to add a new configuration.

  Pick the group you want to manage and assign a login shell. You may
  want to pick either /bin/false for unprivileged accounts and /bin/sh
  for normal accounts.

  Once you have define a special group, two new privileges are added and
  you can grant those privileges to any normal user. He is then allowed
  to manage this group members. One privilege control general management
  of the users (changing name, password, redirecting emails, ...).  The
  second privilege let the co-administrator add new accounts.


  2.  Restricted views

  You can't control every feature of a user account when edit through
  this facility. You can't control the login shell, the group and can't
  assign any privileges.


  3.  Administration commands

  You can define various administration commands. The co-administrators
  will be apply them to various user accounts member of the special
  group.  An administration command is usually a shell script that
  perform a task for one or more user. Potential usage are:


  +o  Updating the web bookmarks of all student in a classroom.

  +o  Resetting the desktop defaults.


  3.1.  Command line format

  An administration command will be called with the list of user
  accounts selected by the administrators (potentially all members of
  the special groups). At definition time, you can specify few command
  line option also. To differentiate the original command line options
  from the user accounts, linuxconf insert a -- sequence between the
  options and the user accounts.

  For example, the supplied script used to update the bookmarks expect
  to pick those bookmarks from another user accounts. An usual command
  line would look like:



               /usr/lib/linuxconf/usersbygroup/install-bookmarks.sh teacher -- \
                       mary john patrick



  3.2.  Logging

  All usage of those administration commands are logged, including the
  output and error message. This is logged in the linuxconf logs.