First I have a master branch in my remote repo on the internet. And I know if I changed my local files, how to update my local changes to the remote repo. Now the problem is, if I don't want my new changes in my local tracked files, how to return back using updating from the remote repo in github?
I have tried the following things:
- I use - git checkout origin master- to get to master repo. 
- I make sure that one tracked file, named main_32.f90 is changed a little bit in the comment line. 
- Then I use - git pull
- it turns out that everything is up to date. - Already up-to-date.
- I then checked the main_32.f90, it is not the original one but the changed one in comment line. So it means that the git pull is not working. 
So how to do it?
 
     
    