aria2c:tldr:97a61
The command "aria2c" is used to download files using the Aria2 command-line download utility. Aria2 is a lightweight, multi-protocol, and multi-source download utility that supports HTTP/HTTPS, FTP, BitTorrent, and Metalink.
In the command "aria2c "${url}"", the "${url}" is a placeholder that represents the URL (Uniform Resource Locator) of the file you want to download. You need to replace "${url}" with the actual URL of the file you want to download.
When you run this command with the correct URL, Aria2 will initiate the download of the file from the specified URL. It will utilize multiple connections, if possible, and divide the file into multiple parts for accelerated downloading. Aria2 also supports pausing and resuming downloads, limits on download speed, and can retrieve files from multiple sources simultaneously.