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How can I set up a different umask for directories then files?

I need dirs with umask 003 and files with umask 117

umask is global in bash. One thing you could do is to create a mkdir wrapper(a script, you give the name to it) that would change the mask after executing it.

#!/bin/bash
umask 0701 ; /path/to/real/mkdir $1 ; umask 0604

This was answered here:

• StackOverflow - Set Different Umask For Files And Folders

Remember: For directories, the base permissions are (rwxrwxrwx) 0777 and for files they are 0666, meaning, you will not achieve execute permissions on file creation inside your shell even if the umask allows. This is clearly done to increase security on new files creation.

Example:

[admin@host test]$ pwd
/home/admin/test
[admin@host test]$ umask
0002
[admin@host test]$ mkdir test
[admin@host test]$ touch test_file
[admin@host test]$ ls -l
total 4
drwxrwxr-x 2 admin admin 4096 Jan 13 14:53 test
-rw-rw-r-- 1 admin admin 0 Jan 13 14:53 test_file

umask Unix Specification tells nothing about this file permission math specifics. It's up to the shell developers to decide(and OS makers).

Please note the mkdir command has a -m option to set the permission bits at creation time:

 -m mode
 Set the file permission bits of the final created directory to the specified mode. The mode argument can be in any of the for-
 mats specified to the chmod(1) command. If a symbolic mode is specified, the operation characters ``+'' and ``-'' are inter-
 preted relative to an initial mode of ``a=rwx''.

in your case you could set the umask to whatever you need for the permissions of your files, and use the -m option for the folder creation.