How does the -E option affect the output of the `cat` command?

The -E option affects the output of the cat command by appending a dollar sign ($) at the end of each line. This visual indicator helps to clearly show where each line ends, which can be particularly useful for identifying trailing spaces or confirming line endings.

Effect on Output:

• End of Line Indicator: Each line will end with a $, making it easy to see the termination of lines.

Example:

If you run the command:

cat -E filename.txt

And filename.txt contains:

Hello, World!   
This is a test file.  
It has multiple lines.  

The output will be:

Hello, World!$   
This is a test file.$  
It has multiple lines.$  

Summary:

The -E option enhances the output by clearly indicating the end of each line, which is helpful for troubleshooting formatting issues or understanding the structure of the text. If you have more questions or need further clarification, feel free to ask!