Wget is a free utility for non-interactive download of files from the Web. It supports HTTP, HTTPS, and FTP protocols, as well as retrieval through HTTP proxies.
Using Wget to download entire website:
Step 1. Create directory where you are planing to store the website content:
Step 2. Go to directory that you just created:
Step 3. Use following command to download the website:
wget -r -Nc -mk http://www.debian-tutorials.com/
NOTE : Command explanation:
-r Turn on recursive retrieving
-N Turn on time-stamping
-m Create a mirror
-k Convert the link
After completion all content will get downloaded into your directory.