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gpasswd (1)
  • gpasswd (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
  • >> gpasswd (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
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    NAME

    gpasswd - administer the /etc/group file
     
    

    SYNOPSIS

    gpasswd group
    gpasswd -a user group
    gpasswd -d user group
    gpasswd -R group
    gpasswd -r group
    gpasswd [-A user,...] [-M user,...] group
     

    DESCRIPTION

    gpasswd

    is used to administer the /etc/group file (and /etc/gshadow file if compiled with SHADOWGRP defined). Every group can have administrators, members and a password. System administrator can use -A option to define group administrator(s) and -M option to define members and has all rights of group administrators and members.  

    Notes about group passwords

    Group passwords are an inherent security problem since more than one person is permitted to know the password. However, groups are a useful tool for permitting co-operation between different users.  

    OPTIONS

    Group administrator can add and delete users using -a and -d options respectively. Administrators can use -r option to remove group password. When no password is set only group members can use newgrp to join the group. Option -R disables access via a password to the group through newgrp command (however members will still be able to switch to this group).

    gpasswd called by a group administrator with group name only prompts for the group password. If password is set the members can still newgrp(1) without a password, non-members must supply the password.  

    FILES

    /etc/group
    Group account information.
    /etc/gshadow
    Secure group account information.
     

    SEE ALSO

    newgrp(1), gshadow(5), groupadd(8), groupdel(8), groupmod(8), grpck(8), group(5).


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    Notes about group passwords
    OPTIONS
    FILES
    SEE ALSO


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