Wait, Sleep, Hold - :sleep
The :sleep function puts the batch execution on hold for a certain amount of second.
:sleep -– waits some seconds before returning
:: — %~1 – in, number of seconds to wait
FOR /l %%a in (%~1,-1,1) do (ping -n 2 -w 1 127.0.0.1>NUL)
goto :eof