[ubuntu] Boy did I ever break my ubuntu

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http://ubuntuforums.org – well I created a lot of trouble for myself. I was trying to install GTK+ 3.0 something and was trying to extract the .tar.xz file. so I looked it up on here and found a helpful little thing to add to my .bashrc file. so i added it and saved the file 'rm .bashrc~' afterwards (or I thought I put the ~) maybe thats why things are messed up. also when I edited .bashrc I 'sudo apt-get install extract' ...after I closed that terminal I was no longer able to open the software center, terminal or any program. only could use what was already open. I restarted and now it just sticks at the purple ubuntu (Hardware)