• VSCode Version: 1.45.1
• OS Version: OS X 10.15.5 Beta

Steps to Reproduce:

1. Create a text file whose name is just a number, e.g. touch 8, touch 887987, etc
2. Try to launch the file from the command line code 8
3. No file is opened. If VSCode was closed, it starts and just shows the welcome screen. If VSCode is running, you see another VSCode icon bounce in the dock and go away.
4. Rename to file to something else, it works fine cp 8 a; code a

Does this issue occur when all extensions are disabled?: Yes