I want to do something like:
echo %errorlevel% > error.txt which would save in error.txt:
%errorlevel% 1 Answer
If you actually want to write the twelve characters % e r r o r l e v e l % (as opposed to writing the numeric error level), use the command
echo %%errorlevel%% Redirection works as normal.
However, note that
echo %%errorlevel%% > error.txt will actually write the thirteen characters % e r r o r l e v e l % , including the space (from before the >). “Obviously” you can fix that by saying
echo %%errorlevel%%> error.txt (leaving out the space before the >), but this is regarded as unaesthetic and hard to read. Another way, that might be considered to be “prettier”, is
(echo %%errorlevel%%) > error.txt 
