GNU Wget is a free software package for retrieving files using HTTP, HTTPS and FTP, the most widely-used Internet protocols. It is a non-interactive commandline tool, so it may easily be called from scripts, cron jobs, terminals without X-Windows support, etc. [source]
wget is normally installed as part of the base setup. If not present, install the pacman.package using
Configuration is performed in
/etc/wgetrc. Not only is the default configuration file well documented; altering it is seldom necessary. See the man page for more intricate options.
Normally, SSH is used to securely transfer files among a network. However, FTP is lighter on resources compared to scp and rsyncing over SSH. FTP is not as secure, but when transfering large amounts of data inside a firewall protected environment on CPU-bound systems, using FTP can prove beneficial.
wget ftp://root:email@example.com.X.Y//ifs/home/test/big/"*.tar" 3,562,035,200 74.4M/s in 47s
In this case, Wget transfered a 3.3 G file at 74.4MB/second rate.
In short, this procedure is:
- faster than ssh
- easily used by languages than can substitute string variables
- globbing capable
Wget uses the standard proxy environment variables. See: Proxy settings
To use the proxy authentication feature:
$ wget --proxy-user "DOMAIN\USER" --proxy-password "PASSWORD" URL
Proxies that use HTML authentication forms are not covered.
To have pacman automatically use Wget and a proxy with authentication, place the Wget command into
/etc/pacman.conf, in the
XferCommand = /usr/bin/wget --proxy-user "domain\user" --proxy-password="password" --passive-ftp -c -O %o %u
This section explains some of the use case scenarios for Wget.
Archive a complete website
Wget can archive a complete website whilst preserving the correct link destinations by changing absolute links to relative links.
$ wget -np -r -k 'http://your-url-here'