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I'm trying to set the permission of any new files to 775 by default (inherited from parent folder), so that every user group can edit these files. I have found and followed this tutorial with no success:

It doesn't work. I have to use sudo chmod -Rv 775 . every time to set all the files. How do I make this happen automatically?

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migrated from May 7 '13 at 15:45

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Regardless of the solution, keep in mind that 755 includes the executable bit for all users; o+rw might be more suitable (o for others, g for group or g+rw,o+rw for both). – akaIDIOT May 7 '13 at 14:37
ok, but how i can set it to default? – Piero May 7 '13 at 14:40
Not an expert, but acls and/or umasks might get you what you need. – akaIDIOT May 7 '13 at 14:42
I don't suppose the directories you are concerned about are SAMBA dir's are they? you can specify a create mask in your smb.conf to address it. have you considered using the SetGID bit (eg: 2775)? SetGid when applied to a folder, causes objects created in the folder to assume the group value from the folder, including subfolders. I usually have my trees owned by Admin:users, and apply 2750 to the folder. that way all the objects created in the tree become owned by Admin:users automatically, so that my users can read/exec, and my Admin can edit/delete. – Frank Thomas May 7 '13 at 16:11

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