aria2 is a command line tool for Linux systems that can download files using a variety of protocols, including HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink. It's diverse download capabilities make it an all-in-one tool for downloading files on Linux.
This is a companion discussion topic for the original entry at https://linuxconfig.org/aria2-all-in-one-command-line-download-tool