1NEWGRP(1)                        User Commands                       NEWGRP(1)
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NAME

6       newgrp - log in to a new group
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SYNOPSIS

9       newgrp [-] [group]
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DESCRIPTION

12       The newgrp command is used to change the current group ID during a
13       login session. If the optional - flag is given, the user's environment
14       will be reinitialized as though the user had logged in, otherwise the
15       current environment, including current working directory, remains
16       unchanged.
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18       newgrp changes the current real group ID to the named group, or to the
19       default group listed in /etc/passwd if no group name is given.  newgrp
20       also tries to add the group to the user groupset. If not root, the user
21       will be prompted for a password if she does not have a password (in
22       /etc/shadow if this user has an entry in the shadowed password file, or
23       in /etc/passwd otherwise) and the group does, or if the user is not
24       listed as a member and the group has a password. The user will be
25       denied access if the group password is empty and the user is not listed
26       as a member.
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28       If there is an entry for this group in /etc/gshadow, then the list of
29       members and the password of this group will be taken from this file,
30       otherwise, the entry in /etc/group is considered.
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CONFIGURATION

33       The following configuration variables in /etc/login.defs change the
34       behavior of this tool:
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36       SYSLOG_SG_ENAB (boolean)
37           Enable "syslog" logging of sg activity.
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FILES

40       /etc/passwd
41           User account information.
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43       /etc/shadow
44           Secure user account information.
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46       /etc/group
47           Group account information.
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49       /etc/gshadow
50           Secure group account information.
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SEE ALSO

53       id(1), login(1), su(1), sg(1), gpasswd(1), group(5), gshadow(5).
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57shadow-utils 4.13                 03/06/2023                         NEWGRP(1)
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