wget

Description

GNU Wget is a free software package for retrieving files using HTTP, HTTPS and FTP, the most widely-used Internet protocols.

Wget's usage is well documented in the lengthy man page found in the links section.

Here are some really basic examples.

Fetch a file from a server:

# wget http://some.host.net/file.tgz

Fetch all png files in a subdirectory (if robots.txt allows it):

# wget -r --no-parent -A "*.png" http://some.host.net/pics/