I am using 10.9.5. I started having this problem recently.
I can download a file into my Downloads folder using the browser, save a new file on the Desktop using a text editor, or create a new folder with a right-click. And I can delete them using the Terminal.
But I can not delete them with
CMD+Backspace. I hear that deleting sound, but the file remains there. Also, when I right click the file, there is no Delete option.
Here is the
-rw-r--r--@ 1 mustafa staff 9B Mar 31 23:24 testfile.txt