code: public void touchModule(String moduleName) {
  
          CmsModule module = OpenCms.getModuleManager().getModule(moduleName);
          if (module == null) {
              m_shell.getOut().println("touchModule: could not find module " + moduleName);
          } else {
              m_shell.getOut().println("Touching module: " + moduleName);
              module.setCheckpointTime(System.currentTimeMillis());
              m_shell.getOut().println("Writing module configuration.");
              OpenCms.getModuleManager().updateModuleConfiguration();
          }
      }
docs: Sets the checkpoint time of a given module to the current time.<p>
  
  If the module does not exist, this just prints an error message but does not throw an exception.
  
  @param moduleName the name of the module whose checkpoint time to update