How to install bz2 packages? (Linux-beginner)

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http://crunchbanglinux.org – I have problems to install a bz2 package (clipgrab- I unpacked it but I can't install it also after chmod +x clipgrab- and afterwards do sudo apt-get install ... . Says' it cant find a package with this name. when I do "ls" it is listed. When I want open the Icon there is no reaction. What shell I do?I was searching for threads I can find help but coudn't find the wright answers. (HowTos)