How do I list all folders and subfolders alphabetically on my MacBook Air?

Launch the Terminal application. At the command prompt, enter the following commands that will write a text file to your Desktop that contains the alphabetical folder hierarchy of your Documents folder to the Desktop. The (/:on) syntax says only folders and sorted ascending by name. The '**' means recursively descend into the folder hierarchy.

cd
for f in ~/Documents/**/*(/:on); do print -Dl "${f}"; done > ~/Desktop/documents_folder.txt

That will take about a second or two and the text file on your Desktop can be viewed with Quick Look or opened in a Text editor.

There is a nice little app called Print Window 5 that will do what you want . There is a free version and an advanced version with more features for $20. I use it frequently to generate lists of folders and files.

Note, it's available from both the vendor and the Mac App Store but the App Store version has limited features.

To get a sorted list In Print Window 5, under the File Information tab, select:

• Sort by -> Name
• Sort Order > Ascending

And if you want only folder names (nothing else), you should probably also:

• Select Layout > Expand all Folders
• Select File Information > Name (uncheck Kind, Size, etc.)
• Deselect Icons & Headers > Include Heading
• Deselect Icons & Headers > Include Icons

There are quite a few options in the various tabs & pull downs in PW5. Take a look through them.

Alternatively, you can export to CSV or Excel and then sort the file names in Excel, Numbers or other apps.

One more thing ... also Select File Information > Print Folders Only

Save Presets on the Layout tab

Take some time to explore the app on your own. The tabs & buttons are straightforward and there is always the Print Window Help to refer to.