---
title: "Convert between octal and symbolic Unix file permissions."
method: POST
path: "/api/v1/chmod"
tags: ["Converters"]
---

# Convert between octal and symbolic Unix file permissions.

`POST /api/v1/chmod`

## Request

- Base URL: `https://programmes.net`
- URL: `https://programmes.net/api/v1/chmod`
- Auth: none declared

chmod Calculator. Operations: `octal-to-symbolic` — Convert octal permissions (e.g. "755") to a symbolic string and description. `symbolic-to-octal` — Convert a symbolic permission string (e.g. "rwxr-xr-x") to octal.

## Request body

- union
  - ChmodOctalToSymbolic: Convert octal permissions (e.g. "755") to a symbolic string and description.
    - `operation` 'octal-to-symbolic', required
    - `input` string: Octal permission string, e.g. "755" or "0644".
    - `options` object
  - ChmodSymbolicToOctal: Convert a symbolic permission string (e.g. "rwxr-xr-x") to octal.
    - `operation` 'symbolic-to-octal', required
    - `input` string: Symbolic permission string, e.g. "rwxr-xr-x".
    - `options` object

## Response `200`

The operation ran.

- object
  - `ok` unknown, required
  - `tool` 'chmod', required
  - `operation` 'octal-to-symbolic' | 'symbolic-to-octal', required
  - `result` unknown, required

## Other responses

- `400`: The request is not valid (https://programmes.net/api#invalid-request); The tool has no such operation (https://programmes.net/api#unknown-operation)
- `404`: No such tool (https://programmes.net/api#unknown-tool)
- `413`: The request or its input is too large (https://programmes.net/api#content-too-large)
- `415`: The body must be JSON (https://programmes.net/api#unsupported-media-type)
- `422`: An option is missing, of the wrong type or out of range (https://programmes.net/api#invalid-options); This call needs more CPU than one API call may use (https://programmes.net/api#refused); The operation could not process the input (https://programmes.net/api#tool-error)
- `429`: Too many requests (https://programmes.net/api#rate-limited)
- `500`: Internal error (https://programmes.net/api#internal-error)

---

[API](https://skmtc.dev/programmes/apis/programmes-net-api.md) · [All operations](https://skmtc.dev/programmes/apis/programmes-net-api/llms.txt) · [OpenAPI document](https://skmtc.dev/programmes/apis/programmes-net-api/revisions/aa939784a2e6?raw)