Path permissions not being inherited

[oygle]

Have noticed a lot of paths with permissions of 775.

So, I went to a path that was 755, added a new sub path, and it was made permissions of 775.

There does not seem to be a permissions inheritance in place ??

[schragge]

The permissions normally don't get inherited from the parent (set-group-ID and set-user-ID being exceptions on directories). Look what the output of 'umask' is. That would define the default permissions for newly created files and directories.

[oygle]

Okay thanks, here is the output of umask ..

$ umask
0002

Does that look right ?

EDIT: It seems that the default permissions changed in 12.04, see this post

How do I change the default permissions ?

[oygle]

Considering the informative post by "Morbius1" here, a snippet ..

On Linux Filesystems

At the moment of birth every file has permissions of 666 and every directory has permissions of 777. A system wide umask is created to modify these permissions immediately after birth and it's currently set at 002. So when you create a new file it's permissions are:

666
002 <-- minus the umask
==
664

And every new directory has permissions of:

777
002 <-- minus the umask
==
775

and the "umask" value I have is 0002.

Now it all makes sense, because my files are defaulting to 664, and paths are defaulting to 775

This change was made in *Ubuntu some time ago.

How do I change the umask to a value of 0022 , so that I get ..

Files 644
Folders 755

Oygle

[schragge]

Well, if you want to change the default only for one user then put umask 022 into ~/.bash_profile, ~/.bashrc or some other shell start-up file for that user.

For changing the system-wide default, put a short script that contains

umask 022

into the directory /etc/profile.d. Name it, say umask.sh. This way, it'll override the umask set either in /etc/profile or in /etc/login.defs, but won't interfere with other things in those files.

Sure, you're free to directly change the default setting in /etc/login.defs instead, but I guess then this file won't get updated automatically with the rest of the system.