Here's how to delete a file from the command line on a Linux machine.

rm filename


    - Where 'filename' is the name of the file
    
    
The rm command can be used with some options

rm -r or rm -R


Using the rm command with -r or -R added to it allows you to remove a directory and all of its  contents. For instance if I have a directory named oldstuff which contains any number of files and  directories, I can delete the oldstuff directory and all of the files and folders inside of it with the  following command:

rm -r oldstuff

That's all you need to do if you want to delete files or directories on a Linux machine from the command line.