SUMMARY: max. length of /etc/group entries

From: Frank Baumgart (
Date: Wed May 25 1994 - 12:16:04 CDT


/etc/group is limited to 1024 characters per line, but you can easily work
around this by making multiple groups with different names, but the same GID.

/usr/etc/grpck has a hard-wired limit of 512.

If you use NIS, which stores group entries in dbm format, the limit is a
little less than 1024, because the group name itself gets stored twice.

Thanks to all who answered my question,


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