HOW TO : Parse IP Address in Windows Batch File

We had a recent challenge at work which required us to execute different actions based on which office a particular workstation was located in. Since we have unique network ranges per office, I thought this would be a good variable to use. Just for future reference, here is how we accomplished this in a batch file. The workstations were running Windows 7

[code]

@ECHO OFF

FOR /f "tokens=3" %%I IN (
‘netsh interface ip show address "Local Area Connection" ^| findstr "IP Address"’
) DO SET ipAddress=%%I

REM "Office 1"
IF NOT x%ipAddress:10.130=%==x%ipAddress% (
ECHO "Office 1" + %ipAddress%
ECHO "do_something_else" )

REM "Office 2"
IF NOT x%ipAddress:10.140=%==x%ipAddress% (
ECHO "Office 2" + %ipAddress%
ECHO "do_something_else" )

[/code]

Details of function used

  • netsh interface ip show address “Local Area Connection” : With this command we are extracting the IP information of just the LAN port
  • findstr “IP Address” : returns the line containing “IP Address”
  • IF NOT x%ipAddress:10.130=%==x%ipAddress% : We are using the substitution function and returning false if the new string doesnt match the original
  • FOR /f “tokens=3” : Using the functions in the FOR loop to extract the third variable in the matching line

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.