Execute the generatChangeLog at command line

Hi, im a newbie and hoping for some help. Its a basic question, but i have no idea: I want to know how to run the commad line for the generateChangeLog.

  1. liquibase --driver=oracle.jdbc.OracleDriver \ --classpath=\path\to\classes:jdbcdriver.jar \ --changeLogFile=com/example/db.changelog.xml \ --url=“jdbc:oracle:thin:@localhost:1521:XE” \ --username=scott \ --password=tiger \ generateChangeLog

Im actually working with the liquibase-maven-plugin. Now I want to generate a changelog.xml for the already exicting database.

Im using windows and working with eclipse… so where can I execute this command?