How do IF Statments work in DOS/BATCH?

Question

I need a batch script which will ping a list of IP addresses, if the IP's do not respond, I want it to beep and pause the script. I know how to do the pinging, but I do not know how IF Statements work within DOS, do I need to assign the answer of the ping to a variable? Thanks

Tom

Answer 1

check these websites

http://academic.evergreen.edu/projects/b...

http://www.infionline.net/~wtnewton/batc...

http://www.robvanderwoude.com/if.html

Answer 2

This may not be exactly what you are looking for but this code works. Where it says x.x.x%A% replace the three x's with the range you want to ping such as 127.8.9. You will fill in the last number in the command prompt. It will not beep or pause when it gets an unresponsive host but it does log everything in a log file, "C:\PING_RESULTS.txt" You might need to run this as an administrator.

@ECHO OFF

:main

IF EXIST C:\PING_RESULTS.txt DEL C:\PING_RESULTS.txt

ECHO Ping Test Ran on %date% at %time% >> C:\PING_RESULTS.txt

ECHO.

:GETIPS

ECHO Enter Range of IP's to Ping in the 192.168.1 subnet

ECHO.

SET /P A="Please enter the first number in the range of IP addresses: "

SET /P B="Please enter the last number in your range of IP addresses to ping: "

Echo Results for ping test between 192.168.1.%A% and 192.168.1.%B% are as follows: >> C:\PING_RESULTS.txt

:PING

ping -a x.x.x.%A% >> C:\PING_RESULTS.txt

IF %A%==%B% GOTO FINISH

SET /a A=%A%+1

ECHO %A%

GOTO PING

:FINISH

set /p yes=Would you like to ping any more addresses (y/n)?

if %yes%==y goto GETIPS

START C:\PING_RESULTS.TXT