Hello World (Batch files)

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This batch file prints "Hello, world!".

Normally, batch files print every command they execute. This is not wanted here, therefore it's suppressed with the following command:

<<hello.bat>>=
@echo off

After that, the message is printed with the following statement:

<<hello.bat>>=
echo Hello, world!

Alternatively, you can switch off echoing for just one line:

<<hello2.bat>>=
@echo Hello, world!

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