How to create big test files in OS X and Linux

If you need to have large files to test your application, there is a command in OS X and Linux that allows you to create a file of an arbitrary size.

We already know that you can create an empty file by using touch:

touch myfile.ext

You can also create files with a preset size with the mkfile command:

mkfile -n 2g my2gbfile.ext

That’s it! You now have a 2 gigabyte file called my2gbfile.ext in your directory.

Leave a Reply

Your email address will not be published. Required fields are marked *

To create code blocks or other preformatted text, indent by four spaces:

    This will be displayed in a monospaced font. The first four 
    spaces will be stripped off, but all other whitespace
    will be preserved.
    
    Markdown is turned off in code blocks:
     [This is not a link](http://example.com)

To create not a block, but an inline code span, use backticks:

Here is some inline `code`.

For more help see http://daringfireball.net/projects/markdown/syntax