Which command allows you to view the contents of a file in Linux?

The command that allows you to view the contents of a file in Linux is widely recognized as "cat." This command is short for "concatenate" and is commonly used not only to display file contents in the terminal but also to combine multiple files into one. When you type "cat [filename]," it streams the entire content of that file directly to the terminal, making it a straightforward choice for quickly viewing file contents.

In contrast, "more" is another command that can be used for viewing file contents, but it allows you to view the content one screen at a time, which is particularly useful for larger files. "ls" is used to list directory contents, showing files and folders within a directory but not actually displaying the contents of individual files. Lastly, "show" is not a standard command in Linux for viewing file content, which makes it an incorrect choice.