Carrot in DOS Command

1. 개요

캐럿(^) 문자는 이스케이프문자로 이미 특정용도로 사용되는 문자를 인터프리트 없이 단순문자로 인식하도록 하는 이스케이프 문자이다. 쌍따옴표 같은 경우에는 ��와 같이 두 번 사용하므로해서 출력을 � 로 표현할 수 있다. 섹션 2에서는 간단히 Wifi 패스워드를 보여주는 배치파일을 이용해서 캐럿문자를 어떻게 사용하는 지 보여준다.

2. 사용 예

netsh wlan show profile name^="%ssid:"=%" key^=clear ^| findstr

/C:"Key Content"

In the command you provided, the caret (^) is used to escape the special characters "=" and "|" within the command. Without the caret, these characters would have special meanings in the command prompt and would affect the execution of the command.

아래 간단한 예를 보라.

� `^=`: This is used to escape the "=" character, indicating that it should be treated as a literal character rather than as an assignment operator.

� `^|`: This is used to escape the "|" character, indicating that it should be treated as a literal character rather than as a pipe operator.

rem to find password from the aps in your site

@echo off

rem

@echo off

setlocal enabledelayedexpansion

for /f "tokens=2 delims=:" %%a in ('netsh wlan show profile ^|findstr ":"') do (

set "ssid=%%~a"

call :getpwd "!ssid:~1!"

)

:getpwd

set "ssid=%*"

for /f "tokens=2 delims=:" %%i in ('netsh wlan show profile name^="%ssid:"=%" key^=clear ^| findstr /C:"Key Content"') do echo ssid: !ssid! pass: %%i

3. ! 를 표시하기

배치파일에서는 !는 특수문자에 해당한다. 특히 지연된 확장을 사용하게 될 때 사용되며 실행 중 그 내용이 결정된다.

3.1. 사용 예

1. **Using Caret (^) Escape Character**: You can use the caret (`^`) escape character to display the exclamation mark without issues.

��� ```batch

��� echo ^!

��� ```

2. **Using Double Exclamation Marks**: Another way is to use double exclamation marks `!!`, as the second one will be treated as a literal exclamation mark.

��� ```batch

��� echo !!

��� ```

3. **Disabling Delayed Expansion (For More Complex Cases)**: If you're dealing with more complex situations and don't want to worry about delayed expansion, you can temporarily disable it.

��� ```batch

��� @echo off

��� setlocal DisableDelayedExpansion

��� echo !

��� endlocal

��� ```