Importer (s/u-info) extensions: daily discharge: detecting, logging and skipping lines with missing date or q, or duplicate date, detecting wrong column titles and cancelling the import, specific error message if gauge not found

#!/bin/bash
cd $FLYSDIR
/usr/bin/java -classpath $CLASSPATH $ARGS $MAINCLASS >> $LOGFILE 2>&1&
echo $! > $D4E_PID