File Permissions
File permissions are settings that determine who can access or modify a file on a computer system. They control actions like reading, writing, and executing files. Each file has an owner, and permissions can be set for the owner, the group, and others. This helps protect sensitive information and ensures that only authorized users can make changes.
In many operating systems, such as Linux and Windows, file permissions are represented by a combination of letters and symbols. For example, in Linux, permissions are shown as "r" for read, "w" for write, and "x" for execute. Understanding these permissions is essential for maintaining security and proper file management.