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cmdcalldelayedvariableexpansion

Dos inline IF test for errorlevel, without use of Delayed Expansion

Is there anyway to do the below without delayed expansion (one line, broken for readability)?

%comspec% /v:on /c %windir%\System32\reg.exe import c:\temp\test.reg &
 if !errorlevel! neq 0 pause

If it were an echo, I know that call can be used, but doesn't seem to be available for use with the if.

Solution

  • One way is to use this older syntax:

    %comspec% ... & if errorlevel 1 pause

    In this case, a special variant of if statement is used, one that tests the current errorlevel state.

    Another option might be this:

    %comspec% ... || pause

    The || command delimiter is roughly equivalent to & if !errorlevel! neq 0, i.e. the subsequent command is executed only if the previous one terminated with a non-zero exit code.