Bmon is a monitoring and debugging tool that runs in a terminal window and captures network statistics, offering options on how and how much data will be displayed and displayed in a form that is easy to understand.
To check if bmon is installed on your system, use the which command:
$ which bmon /usr/bin/bmon
On Debian systems, use sudo apt-get install bmon to install the tool.
For Red Hat and related distributions, you might be able to install with yum install bmon or sudo dnf install bmon. Alternately, you may have to resort to a more complex install with commands like these that first set up the required libconfuse using the root account or sudo:
Thanks to Sandra Henry-Stocker (see source)