Question: how unzip a file in linux?
Answer: Zip. If you have an archive named myzip.zip and want to get back the files, you would type: unzip myzip.zip. ... 
Tar. To extract a file compressed with tar (e.g., filename.tar), type the following command from your SSH prompt: tar xvf filename.tar. ... 
Gunzip. To extract a file compressed with gunzip, type the following: