Which command allows users to scroll through the output of a file?

The command that allows users to scroll through the output of a file is "less." This command is specifically designed for viewing the contents of a file in a paginated format, enabling users to easily scroll up and down through text. It provides an interactive interface where users can navigate through file content using keyboard shortcuts, which makes it ideal for handling large files or outputs.

In contrast, "touch" is used to create an empty file or update the timestamp of an existing file and does not provide any means to view file contents. "Cat" concatenates and displays content but does not allow scrolling; it outputs everything at once, which can be overwhelming for large files. "Stat" is utilized to display file or file system status, presenting metadata rather than the content of the file itself. Thus, "less" stands out as the appropriate command for scrolling through file output.