Thank you very much Stan! It worked. My previous files were in Desktop and bin folder was in desktop. I did not notice it at all. Your answer was very hellpful.
hello! I am a beginner in linux. I made a command "mkdir -p ~/desktop/bin" and then bin is visible in deskop with ls command. However, any other files existing in deskop were not visible with ls command. What shall I do? Please help me with this problem.