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I am having an access problem to some files and directories that I have tracked down to the group assigned to access them.

When I manually change the name of the group in the properties/permissions menu for a directory from the default setting (MyGroup) to www-data used by my Drupal Website, the directory error messages I get are gone.

There are a large number of files and directories that require this change. If believe using chmod will change the owner which is set correctly and being new to Ubuntu, I am reluctant to experiment without a better understanding of how owner and groups work in the permissions settings.

What command changes the Group setting for a directory?

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1 Answer 1

up vote 5 down vote accepted

chmod does not change owner. It changes permissions. chown changes owner (and group if need be) and chgrp changes group.

You can use

chown {-R} [user]{:group} [file|directory]

to set user and group ownership where -R does everything that is inside directory. So sudo chown -R rinzwind:rinzwind /tmp/ would set /tmp/ and everything in it to user rinzwind and group rinzwind.

There is also

chgrp {-R} [group] [file|directory]

if you do not need to touch the user permissions and only need to set the group.

Oh and you can check what group a user belongs to with groups {username}.

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Thanks Rinzwind –  Ashlar Apr 22 '12 at 16:39

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