classmunge is a shell function to add a directory to the CLASSPATH used by Java. It will add the specified directory only if: (1) it currently exists and (2) it is not already on the PATH. It can add the directory either at the beginning of the CLASSPATH (defautl) or at the end of the CLASSPATH.

classmunge

classmunge () {
        if [ -e $1 ]; then
        if ! echo $CLASSPATH | /bin/egrep -q "(^|:)$1($|:)" ; then
           if [ "$2" = "after" ] ; then
              CLASSPATH=$CLASSPATH:$1
           else
              CLASSPATH=$1:$CLASSPATH
           fi
        fi
        fi
}