demeuk 5.0.0

A command-line tool to clean up corpora.

Demeuk

Demeuk is a simple tool to clean up corpora (like dictionaries) or any dataset containing plain text strings. Example use cases are: cleaning up language dictionaries, password sets (like for example RockYou) or any file / stdin containing plain text strings.

In those corpora you'll find encoding mistakes that have been made, or you want to remove some parts of a line. Instead of creating a huge bash oneliner you can use demeuk to do all your cleaning.

Example usages:

• Cutting
• Length checking
• Encoding fixing

Demeuk is written in Python3, this means of course that it is slower than for example cut. However, Demeuk is written multithreaded and thus can use all your cores. Besides this Demeuk can easily be extended to match your needs.

This application is part of the CERBERUS project that has received funding from the European Union's Internal Security Fund - Police under grant agreement No. 82201

Please read the docs for more information.

Quick start

Demeuk supports Python versions 3.12 and up. The recommended way to install demeuk is to use pipx.

pipx install demeuk --python /usr/bin/python3.14

Now you can invoke demeuk directly from the command-line from any directory:

Examples:

    demeuk -i inputfile.tmp -o outputfile.dict -l demeuk.log
    demeuk -i inputfile -o outputfile -j 24 -l demeuk.log
    demeuk -i inputfile.tmp -o outputfile.dict -l demeuk.log --leak
    demeuk -i inputfile -o outputfile -j all -l demeuk.log --leak-full
    demeuk -i inputdir/*.txt -o outputfile.dict -l demeuk.log

Demeuk also works with pipes:

    cat wordlist | demeuk --leak-full --debug > list.out 2> list.log

Development

To make changes to demeuk, you need to run it from the source Python files.

git clone https://github.com/NetherlandsForensicInstitute/demeuk.git
cd demeuk
pipx install ./ --python /usr/bin/python3.14

Now you can run demeuk as in the examples. Note that the shortcut demeuk only updates after you run pipx upgrade demeuk.

You can install demeuk through PDM with pdm install -p ./, this circumvents this issue although you have to run demeuk with pdm run demeuk.

Docs

The docs are available at: http://demeuk.rtfd.io/