---
name: "oct"
section: "1"
platform: "linux"
package: "openpgp-card-tools"
version: "0.11.13-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/oct"
---

# oct(1)

A tool for inspecting, configuring and using OpenPGP cards

## NAME

oct - A tool for inspecting, configuring and using OpenPGP cards

## SYNOPSIS

**oct** \[**--output-format**\] \[**--output-version**\] \[**-h**\|**--help**\] \[**-V**\|**--version**\] \<*subcommands*\>

## DESCRIPTION

A tool for inspecting, configuring and using OpenPGP cards

## OPTIONS

- **--output-format** *\<OUTPUT\_FORMAT\>* \[default: text\]

  Produce output in the chosen format\

  *Possible values:*

  - •

    json

  - •

    text

  - •

    yaml

- **--output-version** *\<OUTPUT\_VERSION\>* \[default: 0.11.0\]

  Pick output version to use, for non-textual formats

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

  Print help

- **-V**, **--version**

  Print version

## SUBCOMMANDS

- [oct-list(1)](/oct-list/1.md)

  Enumerate available OpenPGP cards

- [oct-status(1)](/oct-status/1.md)

  Show information about the data on a card

- [oct-info(1)](/oct-info/1.md)

  Show technical details about a card

- [oct-ssh(1)](/oct-ssh/1.md)

  Show a card's authentication key as an SSH public key

- [oct-pubkey(1)](/oct-pubkey/1.md)

  Export the key data on a card as an OpenPGP public key

- [oct-admin(1)](/oct-admin/1.md)

  Administer data on a card (including keys and metadata)

- [oct-pin(1)](/oct-pin/1.md)

  PIN management (change PINs, reset blocked PINs)

- [oct-decrypt(1)](/oct-decrypt/1.md)

  Decrypt data using a card

- [oct-sign(1)](/oct-sign/1.md)

  Sign data using a card

- [oct-attestation(1)](/oct-attestation/1.md)

  Attestation management (Yubico only)

- [oct-system(1)](/oct-system/1.md)

  Initialization and similar functionality

- [oct-output-versions(1)](/oct-output-versions/1.md)

  Show supported output format versions

- oct-help(1)

  Print this message or the help of the given subcommand(s)

## VERSION

v0.11.13

## AUTHORS

Heiko Schaefer \<heiko@schaefer.name\>