The dirgroup home page
This is a script for merging the contents of a directory, /etc/group.d, into
the file /etc/group. Storing group information in a directory allows users
other than root to own and manage Unix groups. This minor change to Unix
permission semantics provides many of the advantages of much more complex
Normal Unix permissions are fine for keeping people out of your private
files - unfortunately things tend to get more complicated when you want
to grant access to only one or two people. The only way to do this in
traditional Unix is to have the system administrator create a group for
you and your friends, and then assign group ownership of the file to that
This isn't very efficient, since few system administrators will want to
be bothered with creating little custom groups for everyone. In practise
nobody bothers, and groups aren't really used very much.
This script allows system administrators to safely give normal users
permission to create and modify their own groups, thus making the whole
group concept much more useful and usable.
Try it! :-)
All open source programs need user communities, so I've created a mailing
list for dirgroup
. If you have suggestions, bug reports or other
contributions, please send mail to email@example.com
Click here for archives
and a subscription form.
Things to do:
The following additions to would be quite useful. I might write them
some day, or you could write them and send me a copy:
- A better installation sequence, which allows each user to own
his own group on systems like RedHat where there is a group for
- A user-friendly tool for adding groups.
- A user-friendly tool for setting group passwords.
- A user-friendly tool for adding users to groups.
- A method for deleting groups.
- A method for limiting how many groups each user can create (quotas).