Nyx is a command-line monitor for Tor. With this you can get detailed real-time information about your relay such as bandwidth usage, connections, logs, and much more.
Nyx's latest version is 2.1.0, released January 12th, 2019.
What does Nyx provide?
«Bandwidth Graph
Bandwidth used by Tor. You can press 'i' to pick the graphing interval, or 's' to show other usage statistics.
«Event Log
Tor logs a wealth of information about itself. We present it, colorized and deduplicated. Press 'e' to select what events are logged and 'f' to filter to just what you want.
«Connections
Connection data similar to netstat or lsof, but correlated with Tor relay information to make it much richer. Press 'enter' for more details, 's' to sort, and 'd' to see raw descriptor data.
«Configuration Editor
Editor to change Tor's setting on the fly, with usage information from its manual. Press 'enter' to change Tor settings and 'w' to write your changes to disk.
«Torrc
Provides your torrc with line numbers and syntax highlighting. Comments can be stripped by pressing 's'.
«Interpreter
Integration with Stem's interpreter, providing raw controller access, irc-style commands like /help, tab completion, history scrollback, and a python prompt.
«... and more!
That's just the tip of the iceberg. All pages within Nyx provide help information when you press 'h' and menu in response to 'm'. So go explore!