1group(5) File Formats Manual group(5)
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6 group - user group file
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9 The /etc/group file is a text file that defines the groups on the sys‐
10 tem. There is one entry per line, with the following format:
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12 group_name:password:GID:user_list
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14 The fields are as follows:
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16 group_name
17 the name of the group.
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19 password
20 the (encrypted) group password. If this field is empty, no
21 password is needed.
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23 GID the numeric group ID.
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25 user_list
26 a list of the usernames that are members of this group, sepa‐
27 rated by commas.
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30 /etc/group
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33 As the 4.2BSD initgroups(3) man page says: no one seems to keep
34 /etc/group up-to-date.
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37 chgrp(1), gpasswd(1), groups(1), login(1), newgrp(1), sg(1), get‐
38 grent(3), getgrnam(3), gshadow(5), passwd(5), vigr(8)
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42Linux man-pages 6.04 2022-10-30 group(5)