Set errorlevel in Windows batch file

Question

I am writing a batch script that will loop through each line of a text file, (each line containing a filename) check if the file exists and then runs the file and moves it.

Answer 1

This is designed to execute the %%i item only if it exists and follow through with checking for errors and move or log. if the %%i item doesn't exist then it will do nothing.

REM Loop through each line of input.txt
FOR /F "tokens=1-3 delims=, " %%i IN (.\ready\input.txt) DO (
  ECHO.
  ECHO.
  ECHO.
  ECHO Check %%i exists, execute it if it does
  if exist .\ready\%%i (
    call .\ready\%%i
    ECHO Move %%i to archive if no error occured 
    if not errorlevel 1 (
        copy .\ready\%%i .\archive\%mydate%_%mytime%_%%j_%%k_%%i
      ) else (
        ECHO Copy line of text to the new output.txt file if an error occurred
        >>output.txt %%i, %%j, %%k
      )
  )
)