Simple alpine hcxpcaptool Dockerfile for conversion of cap/pcap/pcapng WiFi dump files to hashcat formats. The original repository of hcxtools can be found on https://github.com/ZerBea/hcxtools.

You can use the image from DockerHub.

# pull from DockerHub
$ docker pull slorenz/hcxpcaptool

If you don't like to use my Docker image from DockerHub, you can build by your self after clone. Here an example...

# change into directory of Dockerfile
$ cd /path/of/Dockerfile

# run Docker build
$ docker build --pull -t slorenz/hcxpcaptool .

After download/build of image the following way can be used:

# create Project and cap directory
$ mkdir -p ~/Projects/MyCapFiles/cap

# change into project
$ cd ~/Projects/MyCapFiles

# copy pcap files into cap directory
$ cp ~/bettercap-wifi-handshakes.pcap cap/

# run Docker container
$ docker run -ti --rm --mount src="$(pwd)/cap",target=/hcxpcaptool,type=bind slorenz/hcxpcaptool bettercap-wifi-handshakes.pcap 

# read converted output file
$ cat cap/pmkid.16800

Note: Inside the container, the directory "/hcxpcaptool" must contain the captured cap/pcap/pcapng WiFi dump to convert.

In the example above I use "bettercap-wifi-handshakes.pcap" which is stored inside local "cap" directory (what I mount into the specific directory). After successful execution the (text) file "pmkid.16800" is generated.