It is like streaming so it wont stop once you fire the 2nd command wait for 5-7 minutes and then press ctrl+c, then open the browser of VM click on hadoopnamenode, the go to filesystem and then go to.

user=>flume=>tweets; here you will find the file with all streaming.

Refer the below screen shot.

Let us know if you have any further concern, we will be glad assisting you.