Regarding the Single and the Double Dot within Directories

Question

Whenever we use the command:

dir --> in Windows

and

dir -a --> in Unix

We see 2 kinds of dots:

Answer 1

its the same for both platforms (and web based programming)

. represents the directory you are in and .. represents the parent directory.

in HTML if you have a file eg: http://example.com/blog/index.html and you want to link to the image http://example.com/images/image.jpg you would put it in as such:

<img src="../images/image.jpg" />

As that tells the script to look in the PARENT directory and then images/image.jpg.