Apps eclipse not finding sdk

[myjavaapp]

I have Linux mint 17(Ubuntu). I did install java1.7 with jre successful. I then installed eclipse Kepler newest version. Eclipse Kepler runs fine and I did create a small java program. Which also runs fine. I then installed android-sdk-linux r24.x and untarred successfully in opt/android-sdk-linux. Followed the steps to append that path in etc/profile like so: PATH DEFAULT=${PATH}:/opt/android-sdk-linux/tools and again same line except tools I used platform. I have no internet at home so did all that manually offline. So now in eclipse i went to help>install new software click on add that opens up a small window that let's me search for android-sdk-linux. I click on it and it inputs the path file:/opt/android-sdk-linux I then click o.k on the bottom just to get "can't find file:/opt/android-sdk-linux". When going in eclipse to windows>preferences there is no android to b found anywhere. I realize that in sdk the folders addon and platforms is empty since I have no Internet at home. But eclipse should still find sdk,right? Any help is greatly appreciated. Thanks in advance.