Set CLASSPATH bash shell via .bashrc conf file

type this on terminal (bash shell) :

sudo gedit ~/.bashrc

Append that conf file look like this line, modified the path to suit your environment :

export JASPER_HOME=/media/D/libs/JasperReport;
export CLASSPATH=$CLASSPATH:$JASPER_HOME/jasperreports-3.7.6/dist:$JASPER_HOME/jasperreports-3.7.6/lib;

test with :

echo $CLASSPATH

everytime you start your terminal, your classpath automatically setted.