# aria2c > Fast download utility. > Supports HTTP(S), FTP, SFTP, BitTorrent, and Metalink. > More information: . - Download a URI to a file: `aria2c {{url}}` - Download the contents of an URL to a file: `aria2c -o {{filename}} {{url}}` - Download from multiple sources: `aria2c {{url_1}} {{url_2}}` - Download the URIs listed in a file: `aria2c -i {{filename}}` - Download with multiple connections: `aria2c -s {{connections_num}} {{url}}` - FTP download with username and password: `aria2c --ftp-user={{username}} --ftp-passwd={{password}} {{url}}` - Limit download speed in bytes/s: `aria2c --max-download-limit={{speed}} {{url}}`