gnunet-download-manager is a script that can be used to track download sessions. It makes the process of resuming downloads after a system reboot easier. A typical use is to define an alias (depending on your shell) of the form
$ alias gnunet-download=gnunet-download-manager.scm download
Other commands for the download manager include resume (resumes all downloads), status (show status of pending downloads), killall (abort all downloads), settings (for configuration) and help (print help text).
gnunet-download-manager is a scheme script and will only work if guile is available.