umask command

u856100 — Wed, 21 Nov 2001 16:37:10 GMT

Hi all,

Can anyone explain the exact reasons why the following umask setting '002' expectedly applies a directory permission default of its invers (755) bu applies something like a 664 to all its containing files. Is there a specific reason for this? and does anyone know how I am able to force the file permissions to adhere to a 755 permission setting as well?

thanks in advance!

John

Re: umask command

A. Clay Stephenson — Wed, 21 Nov 2001 16:46:58 GMT

Hi:

I hope you meant a umask setting of 022 or your examples don't work.

Directories are created with a default mode of 777 and when xor'ed with a umask of 022 give 755 permissions.

Regular files are created with a default mode of 666 and when xor'ed with a umask of 022 five 644 permissions.

In order to create regular files with permissions of 755 you must using a creation mode of 0777 which would xor with 0022 umask to yield 0755. This is easy to do if creating the file in C but in the shell you would need a chmod after the file is created.

Regards, Clay

topic umask command in Operating System - HP-UX

umask command

Re: umask command