Mask that controls which file permissions are set for files and directories when they are created. It also refers to a function that sets the mask, and to the mask itself, which is formally known as the file mode creation mask.

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61
votes
3answers
81k views

Make all new files in a directory accessible to a group

Suppose I have two users A and B and a group G and a folder foo, both users are members of G (using linux and ext3). If I save as user A a file under foo, the permissions are: -rw-r--r-- A A. ...
5
votes
2answers
2k views

How can I change the umask for one command only?

How can I interactively execute a command in Linux (zsh, if it matters) with a different umask from the default, for one command only? Perhaps a combination of commands combined in a single line? The ...
2
votes
2answers
172 views

How to change permission of anonymous pipe?

I've the script which loads the SSH key from the variable (as part of script in CI environment) in order to not keep the private file in the public repository, however ssh-add complains about the ...
2
votes
1answer
1k views

No effect of umask and chmod on mounted drives

The windows drives are mounted at boot-time using pysdm. The setting were nls=iso8859-1,users,umask=002,sync,user,dirsync,uid=mtk When I try to change the permission of files using chmod, I don't ...
0
votes
3answers
4k views

Why is umask setting a different permission for a directory and file I have created?

Consider: [user@server1 ~]$ umask 0770 [user@server1 ~]$ mkdir TEST2; touch TEST2.txt; [user@server1 ~]$ ls -l d------rwx 2 user group_name 4096 Mar 5 05:16 TEST2 -------rw- 1 user group_name 0 ...
7
votes
3answers
12k views

How to set umask for a system-user?

Is it possible to set the umask for a system-user (created with useradd --system username)?
3
votes
2answers
5k views

How to make scp respect umask

My scp doesn't respect umask setting of the user it's sending files to. Is there a setting somewhere or should I use a different solution?
3
votes
1answer
785 views

How to have correct permissions of files from usb disks?

Does anyone have the following problem? I have an Ubuntu box at work and also one at home. I always copy folders/files to/from an usb disk to/from my boxes. I have to change permissions of ...
2
votes
1answer
455 views

On AIX 6100-05-02-1034 how can I create custom umask for a specific directory?

On AIX 6100-05-02-1034 how can I create custom umask for a specific directory?