Wget command is generally used by many Linux/Unix users. GNU 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 (The definition taken from man wget command).

If you are internet user, you many times have faced with internet disconnection issue. The internet disconnection can be due to many reason –
1. Issue from ISP ( Internet Service Provider ) end.
2. Suddenly shutdown of system
3. Disconnection from network cable or Wifi devices etc.

So next question comes, how to download file even after internet disconnection ?
The answer is quite simple with wget command use the option --continue .

For example, I want to download the CentOS 7 iso file which is very big in size and do not want to rework on internet disconnection. So I will prefer to use the below given command

wget --continue http://ftp.iitm.ac.in/centos/7/isos/x86_64/CentOS-7-x86_64-Minimal-1503-01.iso

Next time when you think for downloading the big size files, use --continue option with wget command.

Syntax:

wget --continue [OPTIONS] [URL]