bettercap is the Swiss Army knife for 802.11, BLE and Ethernet networks reconnaissance and attacks.

How to Install
A precompiled version is available for each release, alternatively you can use the latest version of the source code from this repository in order to build your own binary.
Make sure you have a correctly configured Go >= 1.8 environment, that $GOPATH/bin is in $PATH, that the libpcap-dev and libnetfilter-queue-dev (this one is only required on Linux) package installed for your system and then:

$ go get github.com/bettercap/bettercap
$ cd $GOPATH/src/github.com/bettercap/bettercap
$ make build && sudo make install

This command will download bettercap, install its dependencies, compile it and move the bettercap executable to /usr/local/bin.
Now you can use sudo bettercap -h to show the basic command line options and just sudo bettercap to start an interactive session on your default network interface, otherwise you can load a caplet.
Once bettercap is installed, you can download/update system caplet with the command:

sudo bettercap -eval "caplets.update; q"

Update
In order to update to an unstable but bleeding edge release from this repository, run the commands below:

$ go get -u github.com/bettercap/bettercap
$ cd $GOPATH/src/github.com/bettercap/bettercap
$ make build && sudo make install

Documentation and Examples
The project is documented in this wiki.