For loop in batch file error: Do was unexpected at this time

Question

I am trying to execute following command using batch file:

for /f %i in (D:\random\servers.txt) DO (d:\utils\tail -60 \\%i\c$\Windows\windowsUpdate.log | d:\utils\grep "updates detected" & set tx1234=%i)

It works when being invoked on its own in command prompt but as soon as I would save it within batch file it fails with the message

Do was unexpected at this time

Any ideas?

Answer 1

in batch use %%i, whereas in command line use %i