---
name: "debruijn"
section: "1"
platform: "linux"
package: "ncbi-tools-bin"
version: "6.1.20170106+dfsg2-6"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/debruijn"
---

# debruijn(1)

de Bruijn sequence generator

## NAME

debruijn - de Bruijn sequence generator

## SYNOPSIS

**debruijn** \[**-**\] **-a** *str* **-n** *k*

## DESCRIPTION

**debruijn** generates (on standard output) a string over the specified alphabet containing every possible word (substring) of the specified length exactly once.  **Note:** Substrings are not taken to wrap around, so the first *k*-1 characters repeat at the end.

## OPTIONS

A summary of options is included below.

- **-**

  Print usage message.

- **-a** *str*

  Alphabet (supply **ncbistdaa** or **ncbi2na** for standard alphabets, or supply your own alphabet).

- **-n** *k*

  Word size.

## AUTHOR

The National Center for Biotechnology Information.