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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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group(5) File Formats Manual group(5)
group - user group file
The /etc/group file is a text file that defines the groups on the
system. There is one entry per line, with the following format:
group_name:password:GID:user_list
The fields are as follows:
group_name
the name of the group.
password
the (encrypted) group password. If this field is empty,
no password is needed.
GID the numeric group ID.
user_list
a list of the usernames that are members of this group,
separated by commas.
/etc/group
As the 4.2BSD initgroups(3) man page says: no one seems to keep
/etc/group up-to-date.
chgrp(1), gpasswd(1), groups(1), login(1), newgrp(1), sg(1),
getgrent(3), getgrnam(3), gshadow(5), passwd(5), vigr(8)
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Linux man-pages 6.9.1 2024-05-02 group(5)
Pages that refer to this page: gpasswd(1), indomcachectl(1), lslogins(1), newgrp(1), sg(1), fgetgrent(3), getgrent(3), getgrent_r(3), getgrnam(3), getgrouplist(3), group_member(3), putgrent(3), gshadow(5), passwd(5), credentials(7), grpck(8), nscd(8), pwck(8), vipw(8)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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