Sleeping in a Windows Batch script:

Sleeping in a Windows Batch script:
* https://stackoverflow.com/questions/1672338/how-to-sleep-for-five-seconds-in-a-batch-file-cmd
* https://stackoverflow.com/questions/735285/how-to-wait-in-a-batch-script
* https://www.robvanderwoude.com/wait.php
Supposing to sleep for 3 seconds:
* Best modern way is TIMEOUT /T 3 /NOBREAK, usable by default on Windows >= Vista, otherwise requires the Windows Resource Kit.
* Old hack, working on Windows 2000 and 9x: PING localhost -N 3 -W 1000, or PING localhost -N 4 (time is +1 since the first time is not delayed)