.bat file to check servers are up

Question

We are running ERP software which is deployed to number of servers.  If we get a problem, we usually restart the servers and cross check that all the servers are running (just check if we get login page or not).  Alternatively, we ping to IP address 192.XXX.X.XX to check the 'reply'.

This checking process is time consuming.  How can I create a .bat file to check and give me results like

192.XXX.X.XX:80 OK
192.XXX.X.XX:81 OK
192.XXX.X.YY:80 No Reply

Solution

For a simple check whether the server is up or not you could put all IP addresses in a file and call the following script with script.bat urls.txt:

@echo off
for /f %%a in (%1) do (
    echo Pinging %%a ...
    ping -n 1 %%a | find "Reply" > NUL
    if not errorlevel 1 (echo %%a is up) else (echo %%a is down)
)

urls.txt should look like this (just a list of IP addresses of your servers or urls):

www.google.com
www.amazon.com
10.2.1.12
8.8.8.8

Comments

[Rauf]

I tried this. But where I can find the result ? I ran 'cmd', then put script.bat urls.txt. The cmd did not give me any result.

[DavidPostill]

Have you actually tested this? This batch file contains at least 4 mistakes.

[cmtjk]

@Rauf, I updated the script

[cmtjk]

@DavidPostill, no I'm not on a Windows machine but the new script should work. feel free to edit!

[DavidPostill]

@r3r57 Revised script works. Please test next time :)

[Bruno Vincent]

How do your run this? If my files are in this directory: C:/BatchPing/url.txt C:/BatchPing/script.bat I know what to put in URL, but what do I put into .bat file? Also, what would be the exact code for this situation? Do I need to substitute %%a and %1 with something?

[Ghulam Akbar]

The above script works fine. But if ping is prohibited for some URL/server, this batch script doesn't work. In this case, what should be the modified script ...?

[mivk]

You should probably use find "TTL=" instead of find "Reply".

[Maris B.]

@mivk is right. For IPv4 the "TTL=" is the most reliable method. The "Reply" is found even when there is an error "Destination host unreachable". Check this thread for more info: stackoverflow.com/questions/9329749/…