How to make the newly created files inherit the directory's permissions...?

Question

I need to give permission to a directory in such a way that, the newly created files should inherit the same permissions as the directory.

• You may find a duplicate for this question, but it doesn't seems to be answered properly. So please update.

Solution

You could assign a group ownership to a parent folder and then make inside files inherit properties.

Assigning group ownership could be set by

sudo chmod -R 660 /path/to/parent
sudo chown -R myself:somegroup /path/to/parent

The group ownership can be inherited by new files and folders created in your folder /path/to/parent by setting the setgid bit using chmod g+s like this:

chmod g+s /path/to/parent

Now, all new files and folder created under /path/to/parent will have the same group assigned as is set on /path/to/parent.

Source

Comments

[muru]

The person who posted that didn't clearly understand what they were doing. myself:somegroup is something you use with chown, and 660 with chmod. You can't mix one with the other.

[kiran bbnl]

@muru : Correct...! The following command did work... <sudo chmod -R 777 /path/to/directory> but newly created files are not inheritting the permissions. Whenever running the commands, they are getting altered....

[Felipe]

This did not work for me. But this did work: sudo find <path> -type d -exec chmod g+s '{}' \;

[alchemy]

Is there a way to do chmod g+s /home/user for the user? I tried chmod u+s /home/user, but only the group was the same as the parent dir, not the userid. ..or does setting just the gid is enough to placate applications that wont run on files in the user dir not owned by the user? related: superuser.com/questions/471844/… "why-is-setuid-ignored-on-directories"