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Full Discussion: help on umask
Operating Systems Linux help on umask Post 302184247 by era on Friday 11th of April 2008 03:25:51 AM
Old 04-11-2008
If you were not allowed to change it under any circumstances, it ought to be impossible. But you can. However, you should be aware of the security implications. If you set it too loose, people will be creating private files in their home directories which are readable by anyone -- if that's acceptable then go ahead. (Setting it tighter than the default is usually not a problem.)

Sounds like you might be barking up the wrong tree, though. Could you describe what problem you are trying to solve? If you want files in a shared directory to be created with specific permissions, maybe your platform would offer a facility for this by other means (for example, by using the setgid bit on the directory, on some platforms).
 

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LEARN ABOUT OSX

createhomedir

createhomedir(1)					    BSD General Commands Manual 					  createhomedir(1)

NAME

     createhomedir -- create and populate home directories on the local computer.

SYNOPSIS

     createhomedir [-scbalh] [-n directoryDomainName] [-u username]

DESCRIPTION

     createhomedir provides several options for creating and populating home directories.

OPTIONS

     -s       creates home directories for server home paths only (default).

     -c       creates home directories for local home paths only.

     -b       creates home directories for both server and local home paths.

     -a       creates home directories for users defined in all directory domains of the server's search path.

     -l       creates home directories for users defined in the local directory domain.

     -n directoryDomainName
	      creates home directories for users defined in a specific directory domain in the server's search path.

     -u username
	      creates a home directory for a specific user defined in the domain(s) identified in the -a, -l, or -n parameter. If you omit the -a,
	      -l, and -n parameters when you use the -u parameter, -a is assumed.

     -i       reads username list from standard input and creates specified home directories. Each username should be on its own line.

     -h       usage help.

FILES

     /usr/sbin/createhomedir			   location of tool

CAVEATS

     When using the -a option, search limits of various directory servers (such as Open Directory or Active Directory) can prevent all possible
     home directories from being created. In this case, you may need to specify the usernames explicitly.

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