#calculates log file name
logfile=""
mkdir -p $DIR_OM/logs && logfile=$DIR_OM/logs/openflow.log && logfile_console=$DIR_OM/logs/openflow_console.log || echo "can not create logs directory $DIR_OM/logs"
#calculates log file name
logfile=""
mkdir -p $DIR_OM/logs && logfile=$DIR_OM/logs/openflow.log && logfile_console=$DIR_OM/logs/openflow_console.log || echo "can not create logs directory $DIR_OM/logs"