A strange "duplicate name" file under Linux

So, file creation is done through remote commands.

is to enter the command in the form and execute it using the PHP system.

The form uses a multiline text input box.

It may be a time to use a similar command like touch to create a file when you press the carriage return, the other time did not add a return, the effect is to use the LS command to see the appearance of the two name of the same file.

The middle of all sorts of guesses ...

Later, using > to redirect the results of LS to a text file, we know that this invisible character is CR, which is the carriage return.

It's weird, huh?

A strange "duplicate name" file under Linux