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I need to find the default gateway in a openvpn scenario where the route output looks like that:

IPv4 Route Table
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric

So I googled around a bit and a found this script here:

@For /f "tokens=3" %%* in (
   'route.exe print ^|findstr "\<\>"'
   ) Do @Set "DefaultGateway=%%*"

echo %DefaultGateway%

This works, but matches both lines in the route output.

But I need to find this line:     10

So I tried to modify the findstr parameter like this:

findstr "\<\>.\<\>"

in the expectation that '.' will match for the tab between the columns. But it doesn't. It will still set DefaultGateway to

I couldn't find a clue in MS documentation either. Maybe someone knows the right expression? Thanks a lot.

share|improve this question
up vote 1 down vote accepted

Try this:

For /f "tokens=3" %%* in (
   'route print ^|findstr "\<*\>"'
   ) Do @Set "DefaultGateway=%%*"

echo %DefaultGateway%

And you can check findstr /? for more informations.

share|improve this answer
Ah thats perfect :-) But I do not understand why. When I wrote "\<\>.\<\>" did it make findstr stop looking after the first '\>' ? – user4711 Oct 5 '12 at 9:16
First of all the . won't do alone, cause aparently it's not just a single tab in the middle. Then to be honest, I'm not really sure how the \< and \> work, it's not really part of the standard implementation of regexs as I know it... It's supposedly "beginning/end of word". So I just played around with it until it worked ;P – m4573r Oct 5 '12 at 9:19
Quite likely the \< and \> forms are required simply to escape the DOS redirection operators. – Karan Oct 7 '12 at 17:24

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