title: configure log4j to log to custom file at runtime
body: <p>Can anyone please guide me as to how I can configure log4j to log to a specific file that I specify at run-time.The name and path of the log file are generated at run-time and the application must log to that particular file.</p>
  
  <p>Generally file appender entries in the log4j.properties file points to the log file that will be used by the application.However in this case I would like to read the log file path from the command line and log to that particular file.</p>
  
  <p>How can I achieve this ?</p>