Batch Test if result of a findstr command is empty

Question

I want to make a batch which search a line in a text file and return true if the line is found or false if it's not.

This how I finf the line, but I don't know how to test it:

findstr /r /c:"^Process Status.*no errors, no warnings$" myfile.log

Can you help me on this please?

Thanks

Answer 1

findstr /r /c:"^Process Status.*no errors, no warnings$" myfile.log > nul
if errorlevel 1 (
    echo The line was not found
) else (
    echo The line was found
)

Check if the command sets errorlevel. If it is set, the text was not found.