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GNU Wget is a simple computer program that retrieves content from web servers, and is part of the GNU Project. Its name is derived from World Wide Web and get, connotative of its primary function. It currently supports downloading via HTTP, HTTPS, and FTP protocols, the most popular TCP/IP-based protocols used for web browsing.

Source: Wget - Wikipedia, the free encyclopedia.

Using wget from behind a proxy

wget uses the "standard" proxy environment variables.

See Proxy settings to know how to set them.

Proxy authentication

wget provides a proxy authentication feature, here is how it works:

$ wget --proxy-user "domain\user" --proxy-passwd "password" URL

Proxies that use a web (HTML) authentication forms are not covered.

Integration in pacman

To have pacman automatically use wget and the proxy with authentication, place the wget command into Template:Filename, in the [options] section:

XferCommand = /usr/bin/wget --proxy-user "domain\user" --proxy-passwd="password" --passive-ftp -c -O %o %u
Warning: be aware that stocking passwords in plain text is not safe. If you really have to do that make sure that only the root can read the file.

Of course you need to set the environment variables in order for that to work.