---
name: "asn2asn"
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/asn2asn"
---

# asn2asn(1)

convert NCBI data between text and binary ASN.1

## NAME

asn2asn - convert NCBI data between text and binary ASN.1

## SYNOPSIS

**asn2asn** \[**-**\] \[**-b**\] \[**-e**\] \[**-i** *filename*\] \[**-l** *filename*\] \[**-o** *filename*\] \[**-s**\] \[**-x**\]

## DESCRIPTION

**asn2asn** converts data in NCBI's ASN.1 format between binary and text subformats, or to isomorphic XML.

## OPTIONS

A summary of options is included below.

- **-**

  Print usage message

- **-b**

  Input asnfile in binary mode

- **-e**

  Input is a Seq-entry

- **-i** *filename*

  Read input from *filename* rather than stdin

- **-l** *filename*

  Log errors to *filename*

- **-o** *filename*

  Write output to *filename* rather than stdout

- **-s**

  Output asnfile in binary mode

- **-x**

  Output XML instead of ASN.1

## AUTHOR

The National Center for Biotechnology Information.

## SEE ALSO

[**asn2ff**(1)](/asn2ff/1.md), [**asn2gb**(1)](/asn2gb/1.md), [**asn2xml**(1)](/asn2xml/1.md), [**asndhuff**(1)](/asndhuff/1.md)