Remember to replace the information in the with the actual file or directory name. To view the permissions on a file or directory, issue the command ls -l. Users usually have a default group, but they may belong to several additional groups. For a directory, the execute permission allows you to change to a different directory and make it your current working directory. For a directory, the write permission allows you to edit the contents of a directory (e.g. A read permission on a directory allows you to list the contents of a directory. The basic rights are read, write, and execute. Permissions are the “rights” to act on a file or directory. This is where permissions come in to play.
In order for this multiuser design to work properly, there needs to be a method to protect users from each other. Linux was designed to allow more than one user to have access to the system at the same time. However, Linux’s major difference from other operating systems is its ability to have multiple users.
Linux/Unix operating systems have the ability to multitask in a manner similar to other operating systems. What are Linux User and Group Permissions?