aria2 is a lightweight multi-protocol & multi-source command-line download
utility. It supports HTTP/HTTPS, FTP, BitTorrent and Metalink. aria2 can be
manipulated via built-in JSON-RPC and XML-RPC interfaces. Its features include:
- Multi-Connection Download.
aria2 can download a file from multiple sources/protocols and tries to utilize
your maximum download bandwidth. Really speeds up your download experience.
- Lightweight.
aria2 doesn't require much memory and CPU time. The physical memory usage is
typically 4MiB (normal HTTP/FTP downloads) to 9MiB (BitTorrent downloads). CPU
usage in BitTorrent with download speed of 2.8MiB/sec is around 6%.
- Fully Featured BitTorrent Client.
All features you want in BitTorrent client are available: DHT, PEX,
Encryption, Magnet URI, Web-Seeding, Selective Downloads and Local Peer
Discovery.
- Metalink Enabled.
aria2 supports The Metalink Download Description Format (aka Metalink v4),
Metalink version 3 and Metalink/HTTP. Metalink offers the file verification,
HTTP/FTP/BitTorrent integration and the various configurations for language,
location, OS, etc.
- Remote Control.
aria2 supports RPC interface to control the aria2 process. The supported
interfaces are JSON-RPC (over HTTP and WebSocket) and XML-RPC.
===> The following configuration options are available for aria2-1.37.0_1:
CARES=off: Asynchronous DNS resolution via c-ares
DOCS=on: Build and/or install documentation
LIBUV=off: Event polling via libuv
NLS=on: Native Language Support
SQLITE=on: SQLite database support
SSH2=off: SSH2 protocol support
STATIC=on: Build static executables and/or libraries
====> XML format or parser support: you have to select exactly one of them
EXPAT=off: XML parser support via Expat
LIBXML2=on: XML parser support via libxml2
===> Use 'make config' to modify these settings
