I want to add logging to an application I am developing, using apache log4j. At this point I want to redirect all log messages for level INFO and lower (TRACE, DEBUG) to std
This is logback config which does exactly(!) what you asking for:
System.out INFO ACCEPT DENY %-4relative [%thread] %-5level %logger - %msg%n System.err WARN %-4relative [%thread] %-5level %logger - %msg%n