Batch File get Specific IP into Variable

Question

I am trying to select a specific IP address in a windows batchfile. This line of code works, but gets the wrong IP address:

for /f "delims=: tokens=2" %%a in ('ipconfig ^| findstr /R /C:"IPv4 Address"') do (set newip=%%a)

If I type this at the command line, it gets a single line containing the IP address I'm looking for:

netsh interface IPv4 show addresses "Ethernet 2" | findstr /R /C:"IP Address"

However, when I try to embed that into the line from above to get the IP address into a variable, it throws the error "'else' is not recognized as an internal or external command, operable program or batch file.'

for /f "delims=: tokens=2" %%a in ('netsh interface IPv4 show addresses "Ethernet 2" ^| findstr /R /C:"IP Address"') do (set newip=%%a)

Any thoughts what I'm doing wrong?

FYI, the reason why I'm trying to select this is that I have a program that sets an entry in my hosts file to point to my current IP, so that the site I'm running locally can use a specific domain. The problem with the existing code is that I have two IPv4 addresses - one from a VPN, and the other from my local router - and that code is selecting the wrong IP address.

Many thanks!

Answer 1

Your findstr parameters are wrong. You have specified use regular expression AND use literal. RegEx will win so you are searching for IP OR Address. Remove the /r.

Also your tokens/delims are wrong - you are getting a lot of spaces in your variable. This makes colon and space a delimiter.

for /f "tokens=3 delims=: " %a in ('netsh interface IPv4 show addresses "local area connection 7" ^| findstr /C:"IP Address"') do (set newip=%a)

How did I discover this. I unwound your command back to individual commands and ran each of those. Once I could see the output it was obvious.