VERIFY – Windows CMD Command
To check that files are saved to disk correctly; the system can re-read the
disk after saving to verify that the file is readable.
VERIFY [ON | OFF]
By default the CMD shell has verify OFF
Verify simply checks that the
destination file, once written, can be read. No comparison with the source the
Copying files with verify OFF can be significantly faster, up to twice as
VERIFY without a parameter will display the current setting.
Valid or no parameters given %ERRORLEVEL% = 0
Bad parameters given %ERRORLEVEL% = 1
VERIFY is an internal command.