which utility does not display the contents of a file?
vim cat
echo
none of the above
The correct answer and explanation is:
The correct answer is echo.
The echo command is used to display a line of text or a variable value in the terminal, but it does not display the contents of a file directly. It is mainly used for outputting text, variable values, or command results.
On the other hand, the vim command opens a file in a text editor, allowing users to view and modify the contents of the file. vim can also be used to display a file’s contents in read-only mode if needed.
The cat command, short for “concatenate,” is used to display the contents of a file on the terminal. When you use cat followed by a file name, it outputs the file’s contents directly to the screen.
In summary, while both vim and cat can be used to view the contents of a file, echo is not designed for this purpose. Instead, it is used for outputting text or variables and does not interact with file contents unless the text is passed explicitly to it. Therefore, echo is the utility that does not display the contents of a file.