keyctl:tldr:7e671

The command "keyctl pipe ${key_name}" is used to create a pipe that allows the reading and writing of data between two processes (or programs) identified by a specified key.

Here's a breakdown of the different components:

• "keyctl": This is a command-line utility in Linux that provides tools for managing and manipulating keys and keyrings.
• "pipe": This subcommand is used to create a pipe between two processes. A pipe is a form of interprocess communication (IPC) that allows one process to send data to another process.
• "${key_name}": This variable represents the name or ID of the key that is used to establish the communication. The key could be an encryption key, authentication token, or any other form of secure credential that identifies the processes involved in the pipe.

When this command is executed, a pipe is created with the specified key as the identifier. After the pipe is established, data can be written to one end of the pipe by a process and read from the other end by another process. The processes can use the pipe to communicate and exchange data securely using the specified key.