Zip & Unzip Files in Ubuntu Linux or UNIX

How to unzip .zip files on Ubuntu?
Should be simple, if you don't have installed unzip on ubuntu,
download thru synaptic manager or apt-get in terminal.
if you've already installed unzip in ubuntu.
open terminal and change to directory you download your .zip file, by using "cd" in terminal, and path you want change to like "/home/nameofyourdesktop/"
then type
$: unzip file.zip
i'm using version 5.52 of unzip

or you can use...
Gunzip files (unzip them)

To extract a file compressed with gunzip, type the following:
gunzip filename_tar.gz

then if you receive no errors, type:
tar xvf filename_tar