Which command is used to output the contents of a file to the terminal?

The command that is used to output the contents of a file to the terminal is "cat." This command concatenates and displays the content of one or more files on the standard output, which is usually the terminal screen. When you use "cat" followed by a filename, it reads that file and sends the output directly to the terminal, allowing users to view the file's contents easily.

For example, executing the command cat filename.txt will display the content of "filename.txt" in the terminal. This is particularly useful for quickly checking the contents of configuration files, scripts, or text documents without opening them in an editor.

Other commands mentioned have different purposes. "echo" is typically used to display a line of text or variables to the terminal rather than file contents. "print" is not a standard command in Linux for outputting file contents and is often associated with programming languages. "show" is not a recognized command in this context within Linux for displaying file contents. Therefore, "cat" stands out as the command tailored specifically for this function.