Why after put command in HDFS the new file seems to be empty?

Question

after several tries I figured out how to put a file from local sys to HDFS. I'm able to see the added files trough HDFS GUI. But the file seems to be empty even though has some dimension.

Command that I used to put file in HDFS:

hadoop fs -put /input.txt /input.txt

Here view from HADOOP GUI

Even if I create other files, all of them have same dimension 340 B. What's wrong with this?

Thanks for your help.