for循环在CMD提示符下工作但不在批处理文件中

Question

我有这个代码在我的CMD promt上运行（有一个％而不是%%）但是当我通过.bat文件执行它时它不工作。

for /f "tokens=5 delims=: " %%G in ('netsh interface IPv4 show dnsserver "Ethernet 2" ^| findstr /C:"Servidores DNS configurados estáticamente"') DO (Echo %%G)

我试图做一个.bat，将我的主DNS和辅助DNS换成另外两个。我正在尝试这样的事情：

@echo off  
cls  
color A
cls

SET DNS1=46.101.36.120
SET DNS2=46.101.149.135
SET DNSGoogle1=8.8.8.8
SET DNSGoogle2=8.8.4.4
SET NAME=Ethernet 2


for /f "tokens=5 delims=: " %%G in ('netsh interface IPv4 show dnsserver "%NAME%" ^| findstr /C:"Servidores DNS configurados estáticamente"') DO IF %DNSGoogle1%==%%G (goto netflixDNS) ELSE (goto googleDNS)


:netflixDNS
echo "Netflix DNS"
netsh interface ipv4 delete dnsserver "%NAME%" all
netsh interface ip set dnsservers "%NAME%" static %DNS1%
netsh interface ip add dnsservers "%NAME%" %DNS2% index=2
ipconfig /flushdns
PAUSE
EXIT

:googleDNS
echo "Google DNS"
netsh interface ipv4 delete dnsserver "%NAME%" all
netsh interface ip set dnsservers "%NAME%" static %DNSGoogle1%
netsh interface ip add dnsservers "%NAME%" %DNSGoogle2% index=2
ipconfig /flushdns
PAUSE
EXIT

由于某种原因，我FOR无法正常工作......

Answer 1

虽然wOxxOm的评论已经解决，但这个问题需要一些解释：明目张胆的mojibake案例。要避免这种类型的mojibake，请在保存的同一代码页下运行批处理脚本：如果以ANSI编码（CP1252）保存，则假定notepad。

证明：

• 将French, German, Portuguese and Spanish accented letters混合保存为纯文本文件
  • 在CP850（DOS西欧）编码和另一个文件
  • in CP1252（Windows Western）编码;
• 以不同的编码显示这些文件，以显示受mojibake影响的字符。

请不要将下一个代码段插入批处理脚本。 复制＆amp;在打开的命令行窗口中粘贴：

chcp 850>NUL
echo áéíóúüýñäëêöã  850>ew-850.txt
chcp 1252>NUL
echo áéíóúüýñäëêöã 1252>ew1252.txt
for %G in (437 850 1252) do @chcp %G&>NUL timeout /T 1 &findstr "^" "ew*.txt"

<强>输出：

==> chcp 850>NUL

==> echo áéíóúüýñäëêöã  850>ew-850.txt

==> chcp 1252>NUL

==> echo áéíóúüýñäëêöã 1252>ew1252.txt

==> for %G in (437 850 1252) do @chcp %G&>NUL timeout /T 1 &findstr "^" "ew*.txt"
Active code page: 437
ew-850.txt:áéíóúü∞ñäëêö╞  850
ew1252.txt:ßΘφ≤·ⁿ²±ΣδΩ÷π 1252
Active code page: 850
ew-850.txt:áéíóúüýñäëêöã  850
ew1252.txt:ßÚݾ·³²±õÙÛ÷Ò 1252
Active code page: 1252
ew-850.txt: ‚¡¢£ì¤„‰ˆ”Æ  850
ew1252.txt:áéíóúüýñäëêöã 1252

==>

Czech and Slovak accented letters和中欧编码（代码页CP852和CP1250）的（不完整分类）的另一个示例：

chcp 852>NUL
echo áéíóúůýňěščřž  852>ee-852.txt
chcp 1250>NUL
echo áéíóúůýňěščřž 1250>ee1250.txt
for %G in (437 852 1250) do @chcp %G&>NUL timeout /T 1 &findstr "^" "ee*.txt"

修改：另一个额外的说明性示例（复制并粘贴到cmd窗口中）。

ECHO OFF
chcp 850>NUL
echo echo %~0 [áéíóúüýñäëêöã] 850>ew-850.bat
chcp 1252>NUL
echo echo %~0 [áéíóúüýñäëêöã]1252>ew1252.bat
chcp 850>NUL
ew-850.bat
ew1252.bat
chcp 1252>NUL
ew-850.bat
ew1252.bat
ECHO ON

<强>输出：

==> ECHO OFF
chcp 850>NUL
echo echo %~0 [áéíóúüýñäëêöã] 850>ew-850.bat
chcp 1252>NUL
echo echo %~0 [áéíóúüýñäëêöã]1252>ew1252.bat
chcp 850>NUL
ew-850.bat
ew-850.bat [áéíóúüýñäëêöã] 850
ew1252.bat
ew1252.bat [ßÚݾ·³²±õÙÛ÷Ò]1252
chcp 1252>NUL
ew-850.bat
ew-850.bat [ ‚¡¢£ì¤„‰ˆ”Æ] 850
ew1252.bat
ew1252.bat [áéíóúüýñäëêöã]1252
ECHO ON

==>