The chmod command is used to modify the permissions on a file. Change mode (chmod) permissions are also known as modes of a file. Using chmod, we can modify permissions separately for the owner, group, and the rest of the world (others) in the system. There are two ways in which we can modify permissions with chmod: one is by using numbers and the other is by using symbolic notations.
Managing file permissions
Modifying file permissions with chmod using symbols
The chmod command is used to change the permission or mode of a file or directories. It takes the new set of permissions as the first argument, followed by the list of files and directories, to apply those new permissions. The symbolic method has the following syntax...