File Systems, and File and Directory Permissions and Ownership

• This video describes the various file systems and directories for doing different types of work and for storing files.

  • File systems and directories

• File and directory permissions are explained, and demonstrations are given on how to display permissions and how to change them. Default permissions are given.

  • File and directory permissions

• Starting with given default file and directory permissions, which are based on a system-specified umask, the umask command is described. umask is then used to show how default permissions are specified, and how the umask can be changed by a user to change the default permissions on files and directories. These changed default permissions may be more advantageous for your particular group. This video should be viewed after the preceding one on file and directory permissions because several concepts are introduced in the previous video that are used in this one.

  • umask for (changing) default file and directory permissions

• How to display and change file and directory individual and group ownership.

  • file and directory individual and group ownership