Linux Delete belt-number file _unix Linux

I do not know why the main directory suddenly a-SV file, the visual is due to the Nmap-SV parameters produced.

Write down the right as a note ~

Now, let's simulate the situation.

Touch---the SV touch
./-SV # Both of them are fine.

Now the working directory will produce a file named-SV
If you perform

Rm-sv

will produce an error

Rm:invalid option--' s '
Try ' rm--help ' for the more information.

The reason is invalid parameter s

Originally intended to Google to look at, the result of RM--help see the answer

To remove a file whose name starts with a '-', for example '-foo ', use one of these
commands:
 rm---Foo

 RM ./-foo