Q: How do I use the proxies with the wget from linux’s terminal?
A: You need to specify the proxy for both http and https sites.
wget -e use_proxy=yes -e https_proxy=http://user:pass@ip:port -e http_proxy=http://user:pass@ip:port http://yourURL.com
If you download via a FTP, you need put put
ftp_proxy=http://user:pass@ip:port