#BASH
du -sh {directory}list display size of directory in human readable format.du -sh *show size of each directory in the current pathdfdisk space usage
$ du -sh *
 11M  Applications
1.9G	Desktop
 14G	Documents
8.0K	Downloads
1.7G	Dropbox
...###Display Notifications using AS
osascript -e 'display notification "Lorem ipsum dolor sit amet" with title "Title"'