Do something every 10 seconds batch file

Question

I have a batch file:

arp -s 192.168.1.254 xx-xx-xx-xx-xx-xx
ipconfig /flushdns

How can I do these two commands on Windows XP, every 10 seconds?

Answer 1

Try this one:

:loop
arp -s 192.168.1.254 xx-xx-xx-xx-xx-xx
ipconfig /flushdns
ping localhost -n 11 > nul
goto loop

The ping command will execute for 10 seconds, and all the output will be redirected to the NUL device, meaning that you will see no output from the ping command. It works indeed as a "sleep" command would.

Answer 2

:top
arp -s 192.168.1.254 xx-xx-xx-xx-xx-xx
ipconfig /flushdns
sleep 10
goto top

Edit: As mentioned in the comments, SLEEP won't be available in a normal install. You'll need something like the Windows 2003 Resource Kit, or some other trick to simulate it (the ping trick Bruno mentions), and notes to do so can be found here.

Answer 3

You could set up a Windows service to run your batch file.

Answer 4

Cheat:

Use this command to pause the batch for 10 seconds

choice /n/t:c,<10>/c:cc

Now, place it in a never ending loop in the batch and voilà!

Answer 5

Install Cygwin which will make sleep and cron available to you (among other things).

Answer 6

More precise solution ping unexistent host once and set timeout

ping 1.0.0.0 -n 1 -w 10000 >nul

But it generate parasite traffic

Answer 7

below, it is both an ugly and a beautiful way, an Windows batch file - it consumes a lot of cpu time to do nothing, but it does what you want and is so nice.

SETLOCAL EnableDelayedExpansion

::in seconds
set time2stop=10

:loop1
arp -s 192.168.1.254 xx-xx-xx-xx-xx-xx
ipconfig /flushdns

for /f "tokens=1,2* delims=:" %%i in ("!time!") do (
  set hour1=%%i
  set min1=%%j
  set sec1=%%k
)

for /f "tokens=1* delims=," %%i in ("!sec1!") do (
  set isec1=%%i
)

:loop2

for /f "tokens=1,2* delims=:" %%i in ("!time!") do (
  set hour2=%%i
  set min2=%%j
  set sec2=%%k
)

for /f "tokens=1* delims=," %%i in ("!sec2!") do (
  set isec2=%%i
)

set /a delta=3600*(!hour2!-!hour1!)+60*(!min2!-!min1!)+(!isec2!-!isec1!)
if !delta! geq !time2stop! goto end2

goto loop2

:end2

@echo on

goto loop1