---
name: "fasta-nr"
section: "1"
platform: "linux"
package: "last-align"
version: "1609-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/fasta-nr"
---

# fasta-nr(1)

Keep the first of identical sequences

## NAME

fasta-nr - Keep the first of identical sequences

## SYNOPSIS

**fasta-nr** \[*options*\] *seqs.fasta*

## DESCRIPTION

Keep the first of identical sequences (after converting them to uppercase).

## OPTIONS

- **-h**, **--help**

  show this help message and exit

- **-s**

  omit any sequence that is a shorter substring of another