What's the Windows command shell equivalent of Bash's `true` command?

Question

I have written a Vim plugin which shells out to run external commands. Two of the commands I run are diff and grep which can each exit with a non-z

Answer 1

true is roughly equivalent to (exit 0) (the parentheses create a subshell that exits with status 0, instead of exiting your current shell.

Answer 2

cd .

also sets %ERRORLEVEL% to 0 but runs a bit faster and writes a bit shorter than ver>nul. Example:

mkdir . 2>nul || cd .

Answer 3

The context is a Windows cmd shell (used by the git-cmd.bat script):

Following "Exiting batch with EXIT /B X where X>=1 acts as if command completed successfully when using && or || operators between batch calls", you could define in your path a true.bat file with:

@%COMSPEC% /C exit 1 >nul

Answer 4

VER>NUL

works for me.

For example,

MKDIR . || VER>NUL

issues an error message, but it sets %ERRORLEVEL% to 0.