What is UMASK?

[Sreenath]

UMASK (User Mask or User file creation MASK) is the default permission or base permissions given when a new file (even folder too, as Linux treats everything as files) is created on a Linux machine. Most of the Linux distros give 022 (0022) as default UMASK. In other words, it is a system default permissions for newly created files/folders in the machine.

[JoshuaSi]

Hello

Here in my organization all pc are ubuntu. Now, I want to develop umask on user.

scenario is that person who loged in can only access his home directory not others home directory.

Please Guide me.