or download this
log4perl.rootLogger=DEBUG, Screen, FileRotate
log4perl.appender.Screen=Log::Log4perl::Appender::Screen
...
log4perl.appender.FileRotate.DatePattern=yyyy-MM-dd-HH
log4perl.appender.FileRotate.layout=Log::Log4perl::Layout::PatternLayo
+ut
log4perl.appender.FileRotate.layout.ConversionPattern = %d %-1.1p %P %
+H %m%n