7-Zip is free open source file archiver with a high compression ratio.
To install 7zip on ubuntu 11.10
1.Open ubuntu software center.To open ubuntu software center click the Dash home from unity launcher. And type ubuntu software center in the search field.And click ubuntu software center.
2.Type 7zip in the search box.
3.Select 7zip and click the install button.
4.Type your ubuntu password if needed.
5.After the successful installation, click the Dash home from unity launcher. And type 7zip in the search field.And click 7zip
