lgroupmod(8) [debian man page]

lgroupmod(8)						      System Manager's Manual						      lgroupmod(8)

NAME

       lgroupmod - Modify an user group

SYNOPSIS

       lgroupmod [OPTION]... group

DESCRIPTION

       Modifies the user group with name group.

OPTIONS

       -A, --admin-add=list
	      Add users in comma-separated list among group's administrators.

       -a, --admin-remove=list
	      Remove  users  in comma-separated list from group's administrators.  Removing users that are not currently among group's administra-
	      tors silently succeeds.

       -g, --gid=gid
	      Change group's group ID to gid.

       -i, --interactive
	      Ask all questions when connecting to the user database, even if default answers are set up in libuser configuration.

       -L, --lock
	      Lock group.  This prevents users from using the group password with newgrp(1) to become a member of group.

       -M, --member-add=list
	      Add users in comma-separated list among group's members.

       -m, --member-remove=list
	      Remove users in comma-separated list from group's members.  Removing users that are not currently  among	group's  members  silently
	      succeeds.

       -n, --name=name
	      Rename group to name.

       -P, --plainpassword=password
	      Set group's password to password.  Note that the password can be viewed while running lgroupmod using tools such as ps(1).

       -p, --password=encrypted
	      Set  group's  password  to the password represented by the hash encrypted.  Note that the hash can be viewed while running lgroupmod
	      using tools such as ps(1).

       -U, --unlock
	      Unlock group.

EXIT STATUS

       The exit status is 0 on success, nonzero on error.

libuser 							    Jan 11 2005 						      lgroupmod(8)

GSHADOW(5)						   File Formats and Conversions 						GSHADOW(5)

NAME

       gshadow - shadowed group file

DESCRIPTION

       /etc/gshadow contains the shadowed information for group accounts.

       This file must not be readable by regular users if password security is to be maintained.

       Each line of this file contains the following colon-separated fields:

       group name
	   It must be a valid group name, which exist on the system.

       encrypted password
	   Refer to crypt(3) for details on how this string is interpreted.

	   If the password field contains some string that is not a valid result of crypt(3), for instance ! or *, users will not be able to use a
	   unix password to access the group (but group members do not need the password).

	   The password is used when an user who is not a member of the group wants to gain the permissions of this group (see newgrp(1)).

	   This field may be empty, in which case only the group members can gain the group permissions.

	   A password field which starts with a exclamation mark means that the password is locked. The remaining characters on the line represent
	   the password field before the password was locked.

	   This password supersedes any password specified in /etc/group.

       administrators
	   It must be a comma-separated list of user names.

	   Administrators can change the password or the members of the group.

	   Administrators also have the same permissions as the members (see below).

       members
	   It must be a comma-separated list of user names.

	   Members can access the group without being prompted for a password.

	   You should use the same list of users as in /etc/group.

FILES

       /etc/group
	   Group account information.

       /etc/gshadow
	   Secure group account information.

SEE ALSO

       gpasswd(5), group(5), grpck(8), grpconv(8), newgrp(1).

shadow-utils 4.1.5.1						    05/25/2012								GSHADOW(5)