Extracting .tar.gz files
1) If your tar file is compressed using a gzip compressor, use this command to uncompress it.
$ tar xvzf file.tar.gz
Where,
x: This option tells tar to extract the files.
v: The “v” stands for “verbose.” This option will list all of the files one by one in the archive.
z: The z option is very important and tells the tar command to uncompress the file (gzip).
f: This options tells tar that you are going to give it a file name to work with.
A tarball is a group or archive of files that are bundled together using the tar command and have the .tar file extension.
Eg:
Source/Credits: https://www.interserver.net/tips/kb/extract-tar-gz-files-using-linux-command-line/