windows - "was unexpected at this time."

Question

I'm running this command on a batch file:

for %I in (*.txt *.doc) do copy %I c:est2

...and it keeps returning:

I was unexpected at this time.

What is the cause of this error?

Answer 1

If you're running within a batch/cmd file, you need to double the % markers:

for %%i in (*.txt *.doc) do copy %%i c:est2

The single % variant only works from the command line.