See section 8.5 . Delete Remove all the selected entries from the directory. Subdirectories will have their contents deleted first. Deleting symlinks only removes the link, not the thing it points to. Disk Usage Count the sizes of all the selected items.
Directories also have theircontents counted.
Symlinks count themselves, not the things they point to. Permissions Allows you to change the permissions for the selected files. A symbolic link stores the location of another file. Deleting the symlink doesn't affect the other file. Deleting the other file means that the symlink won't work.