There are many files on your computer. They are organdised in different folders/directories at different levels. This gets very complex and confusing quickly so we like to visualize it using a diagram called a tree.
Photo from pngegg.com
The idea is that when in any folder in the terminal, you know your location and the path you took to get there.
/UserDesktopWebsiteIndex.html" / " is at the top. Under it, everything on your computer is stored. In " user " there are several folders for stuff stored on your computer.
DesktopDocumentsDownloadsLibraryMoviesMusicPicturespublic_keyThe files on your computer can also be organised in list format like the one displayed below.
/
Desktop
WebsiteScreenshotsApplicationsDocuments
PDF filesDocs filesHere is the html syntax for a list like this.
<ul>
<li> /
<ul>
<li>Desktop
<ul>
<li>Website</li>
<li>Screenshots</li>
</ul>
</li>
<li>Documents
<ul>
<li>PDF files</li>
<li>Docs files</li>
</ul>
</li>
</ul>
</li>
</ul>
(When exiting vim, be sure to use esc:wq to ensure your work is saved. If you recieve the error message: E492: Not an editor command, ensure that you typed the correct thing.)