Install d4x Download manager in Ubuntu
Among others, its key features include proxy and SOCKS5 support, recursive downloading, wildcard matching, download
scheduler, multiple download queues and more.
Install d4x in Ubuntu
sudo apt-get install d4x
This will complete the installation.If you want to open the application you need to Applications -> Internet ->Downloader for X
Once it open the application you should see the following screen
d4x version details