Robocopy Exit Codes: 0 and 1 usually mean success
Posted by jpluimers on 2012/10/08
Most console applications return 0 (zero) as success.
But sometimes there are multiple success result codes, and the success depends on what you want to do with them.
One example is RoboCopy.
The zero result code means that nothing happened: no error occurred and nothing was copied, because there was no need to.
But for most RoboCopy scenario’s result code 1 (one) is also success. It means that no error occurred and that one ore more files were copied.
Most RoboCopy use cases will have [0,1] as the set off success result codes.
via: Robocopy Exit Codes.