maven plugin to run shell or batch scripts

pom.xml

            <!--source: http://stackoverflow.com/a/3493919/918211-->
            <plugin>
                <artifactId>exec-maven-plugin</artifactId>
                <groupId>org.codehaus.mojo</groupId>
                <executions>
                    <execution><!-- Run our version calculation script -->
                        <id>Version Calculation</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>exec</goal>
                        </goals>
                        <configuration>
                            <executable>${basedir}/scripts/calculate-version.sh</executable>
                        </configuration>
                    </execution>
                </executions>
            </plugin>