How to echo “2” (no quotes) to a file, from a batch script?

Question

How do I echo the number 2 into a file, from a batch script?

This doesn\'t work:

Echo 2>> file.txt

because 2&g

Answer 1

escape the haracter '2'

in linux: echo \2>file.txt

in windows: echo ^2>file.txt

in windows this also will work

echo.2>file.txt no space between echo and the dot