The SCP (Secure Copy Protocol) is a network protocol that enables secure file transfers between hosts using the SSH (Secure Shell) protocol. It provides simplicity, security, and pre-installed availability on Unix-based systems, making it a valuable tool for securely transferring files. The SCP command is a command-line utility that implements the SCP protocol, allowing users to securely copy files and directories between two locations. With its robust security features, including SSH authentication and encryption, SCP ensures the confidentiality and integrity of data during file transfers. It can be used for various purposes, such as sharing sensitive documents, collaborating on projects, or managing server configurations, making it an essential tool for both individuals and businesses. The SCP command syntax is straightforward, allowing users to customize their file transfer workflows with options like recursively copying directories and specifying port numbers.