That's from my command prompt that I wrote -- the arrows are just Unicode characters. You can see it here if you like:

https://github.com/fj/dotfiles/blob/master/home/.config/shel...

Edit: On further reading, I think you seem to be thinking that the paste of my console is an image. It is just text. To make fixed-width text on HN, indent each line by four spaces, like this:

    This text has four spaces at the beginning of its line.