Writing special characters from one batch file to another

Question

I am trying to write one batch file from another, using echo. However, there is one line with special characters that I cannot work out how to write.

I have

Answer 1

The special characters need to be escaped with ^ and % signs have to be doubled. Try this:

The ( directly after echo stops issues with some leading characters.

echo(^>nul 2^>^&1 "%%SYSTEMROOT%%\system32\cacls.exe" "%%SYSTEMROOT%%\system32\config\system" >> "c:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\OrchestrationCleanUp.bat"