Installation

Homebrew

brew tap wtfutil/wtfutil
brew install wtfutil

wtfutil

As a Binary

Grab the latest version from here:

https://github.com/wtfutil/wtf/releases

expand it, and cd into the resulting directory. Then run:

./wtfutil

and that should also do it.

From Source

Download the source code repo and install the dependencies:

# Set the Go proxy variable to GoCenter
export GOPROXY="https://gocenter.io"

# Enable Go modules
export GO111MODULE=on

go get -u github.com/wtfutil/wtf
cd $GOPATH/src/github.com/wtfutil/wtf
make install
make run

and that should do it.