File permission is changed.

[Macho_2]

When some job process in one of my directory, it will copy file to process and will over write it again ,but the permission was changed automatically to rw- r-- --- (like a default)so the next process can not over write the file again coz permission is changed. The original permission was rw-rw-r-.
How can we set the permission to be rw-rw-r- ?

Pls give me some advice regarding of this problem.

[Stephen Keane]

Check your umask

If you are creating a file rw-r-----, that suggest your umask is set to 0133, if you want rw-rw-rw then it should be something like 0111. Maybe your process should change it, or call chmod on the file when it has finished?

[Hoang Chi Cong_1]

Hi
Next time, don't forgot use "-p" option....
With -p option, the file permission will be keep......

Regard,
HoangChiCong

[Nguyen Anh Tien]

Which user do you use?
open users's profile (.profile) and add Umask
#vi .profile
UMASK 0113
->save and then logout
Next time your script will use Umask to mask you file.
tienna

[Kevin Wright]

files are created with default perms of 666. rw-rw-rw-. Dirs are created with default perms of 777. rwxrwxrwx.

You subract the defined umask variable from the above values to determine the perms on the file created:

To create a file with rw-rw-r--, your umask needs to be 0002.

to create a file with rw-r----, your umask needs to be 0026.

Set this in your script.

[Macho_2]

Hi Kevin;

In which script I need to add the umask 0002 ?
For you information, the directory that coz permission actually under oracle user.

[Robert-Jan Goossens · Accepted solution]

Hi,

Before changing the umask, check where it is set.

# grep umask /etc/profile
# grep umask /home/oracle/.profile
If you change it in the profile it will be a system wide change !!

# cd /home/oracle
# vi .profile
umask 0002

Regards,
Robert-Jan

[Macho_2]

Hi;

If I edit the umask 0002 under /home/oracle/.profile file, is it will change permission rw-rw-r to all the files and directory under oracle.

[Robert-Jan Goossens]

NO, only the files being written from the orcale user. The umask setting will NOT chown the directory + files of the /home/oracle user.