Aria is a multi-protocol download tool. Aria supports HTTP/HTTPS, FTP/SFTP BitTorrent and Metalink. Some of the features that make it different compared to others are that it supports the download of files from multiple locations at the same time, magnet links and is fully featured BitTorrent client. As a BitTorrent client, it supports DHT, PEX, encryption, Magnet URI, web seeding, selective downloads, and local peer discovery.
A curl is a tool that can be used to transfer data from or to a server. It supports multiple protocols. According to its man page, the following protocols are supported DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, and TFTP.
In this article, we will explain how to find out who is using a particular file in Linux. This will help you know the system user or process that is using an open file.