CMD/Batch 获取活动接口名称作为变量 [英] CMD/Batch get active interface name as variable

问题描述

我目前很难弄清楚如何将活动接口名称作为变量输出获取，以便以后在代码中使用.我一直在阅读 我们可以看到，由于

<块引用>

netsh 界面显示界面

，显示了两个连接的接口和两个未连接的接口.但是，我如何获得 f.ex.以太网 2 和 WiFi 作为变量仅像 %%V 一样?

解决方案

获取所有连接的接口名称:

FOR/F "tokens=3,*" %%A IN ('netsh interface show interface^|find "Connected"') DO echo %%B

注意:这取决于语言.

对于独立于语言的解决方案，请使用 wmic(它有自己的陷阱和奇怪之处):

for/f "tokens=2 delims==" %%a in ('wmic nic where (NetConnectionStatus^=2^) get name/value') do (for/f "delims=" %%b in ("%%a") do echo %%b)

内部的for是处理丑陋的wmic行尾

I'm currently having a hard time figuring out how to get the active interface names as a variable output which can be later on used in the code. I've been reading here a bit, how to use the cmd output as a variable, but I need the specific names which are active.

My current code:

    @echo off

    netsh interface show interface


    FOR /F "tokens=* USEBACKQ" %%F IN (`netsh interface show interface`) DO (
    SET var=%%F
    )
    ECHO %var%
    Pause

Which displays this image: We can see that due to

netsh interface show interface

, two connected interfaces and two non connected are shown. However, how do i get f.ex. Ethernet 2 and WiFi as a variable only like %%V ?

解决方案

to get the names of all interfaces that are connected:

FOR /F "tokens=3,*" %%A IN ('netsh interface show interface^|find "Connected"') DO echo %%B

Note: this is language dependent.

For a language independent solution use wmic (which has it's own traps and oddities):

for /f "tokens=2 delims==" %%a in ('wmic nic where (NetConnectionStatus^=2^) get name /value') do (
  for /f "delims=" %%b in ("%%a") do echo %%b
)

The inner for is to handle the ugly wmic line endings

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