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How to create all files generated in a directory with 644 permissions?

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Operating Systems AIX How to create all files generated in a directory with 644 permissions?
# 1  
Old 10-16-2014
Error How to create all files generated in a directory with 644 permissions?
Hi,

We are using AIX machines. How to create all files generated in a directory with 644 permissions automatically.


Regards,
Suresh
# 2  
Old 10-16-2014
Quote:
Originally Posted by suresh3566
Hi,

We are using AIX machines. How to create all files generated in a directory with 644 permissions automatically.


Regards,
Suresh
Code:
mkdir -m 644 dirname

---------- Post updated at 07:30 PM ---------- Previous update was at 07:26 PM ----------

Code:
root@nio:/tmp# mkdir -m 644 testdir

root@nio:/tmp# touch testdir/file1

root@nio:/tmp# stat -c "%a %n" testdir/
644 testdir/

root@nio:/tmp# stat -c "%a %n" testdir/file1 
644 testdir/file1

# 3  
Old 10-16-2014
I think I'd like to correct this. As far as I'm aware, permissions when creating files is set by the inverse of the umask value. The command above will create a directory with tw-r--r-- permissions (meaning you cannot cd into it) but that's all.

To create files with permissions 644, do the following:-
Code:
umask=022
touch /tmp/my_file
ls -l /tmp/myfile

For me, umask=066, so default permissions are rw-------



Robin
These 2 Users Gave Thanks to rbatte1 For This Post:
Akshay Hegde RavinderSingh13
# 4  
Old 10-16-2014
Yes Robin..

I am unable to do cd directory. I have already a directory with below permissions. Now, whatever the files generating in this directory, should generate with 644 permissions. How to get this?

drwxrwxr-x dump

Regards,
Suresh
# 5  
Old 10-16-2014
rbatte1: thanks for sharing knowledge Smilie. I wish I would have created and tested as a normal user Smilie
# 6  
Old 10-16-2014
You use umask command and its per user or set as default for all in AIX I suppose in /etc/environment ...
What you want is
Code:
 umask 022

See Robin's explanation above
# 7  
Old 10-16-2014
Depending on the shell and the user you run it under, changing the umask to 022 might be sufficient.
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