Escaping a batch file echo that starts with a forward slash and question mark

Question

Bit of a tricky one. How can I correctly escape the following in a batch file?

echo    /?   display this help text

This particular combina

Answer 1

For escaping echo arguments exists many variants, like echo., echo:, echo=
But only echo( seems to be secure against any appended text.

These one fails, if files exists like echo, echo[, echo] or echo+

echo.
echo[
echo]
echo+

These one fails, if a file in the current directory exists named my.bat

echo\..\my.bat
echo:\..\my.bat
echo.\..\my.bat

These one fails independet of a file

echo/?
echo,/?
echo;/?

Only the echo( seems to be always safe against any content

Answer 2

For escaping echo arguments, you can use the alternative syntax echo.:

echo./?