newgrp man page on CentOS

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NEWGRP(1)			 User Commands			     NEWGRP(1)

       newgrp - log in to a new group

       newgrp [-] [group]

       newgrp is used to change the current group ID during a login session.
       If the optional - flag is given, the user's environment will be
       reinitialized as though the user had logged in, otherwise the current
       environment, including current working directory, remains unchanged.

       newgrp changes the current real group ID to the named group, or to the
       default group listed in /etc/passwd if no group name is given.  newgrp
       also tries to add the group to the user groupset. If not root, the user
       will be prompted for a password if she does not have a password (in
       /etc/shadow if this user has an entry in the shadowed password file, or
       in /etc/passwd otherwise) and the group does, or if the user is not
       listed as a member and the group has a password. The user will be
       denied access if the group password is empty and the user is not listed
       as a member.

       If there is an entry for this group in /etc/gshadow, then the list of
       members and the password of this group will be taken from this file,
       otherwise, the entry in /etc/group is considered.

	  User account information.

	  Secure user account information.

	  Group account information.

	  Secure group account information.

       id(1), login(1), su(1), gpasswd(1), group(5), gshadow(5).

User Commands			  06/24/2006			     NEWGRP(1)

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