[ubuntu] how to download .profile file from the repository?

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http://ubuntuforums.org – While following a linux tutorial on editing scripts with vi, it looks I have corrupted the .profile file in my ubuntu 10.04. (I have inadverdently deleted the .profile.swp file, too). Even though it does not seem to have affected the functioning of usual commands, I am afraid that problems may come up in advanced usage. To avoid this, I want to download the original .profile file from the repository and replace it with my (doubtfully)corrupted one. Can anybody tell me how and from where I can download it? (Hardware)