> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/pt-br/hacking-tools/calculators.md).

# Calculadoras

Esta seção agrupa calculadoras de consulta rápida para tarefas comuns de testes de invasão e administração. Cada página usa tabelas pesquisáveis do GitBook, então você pode digitar o valor de que precisa e ir diretamente ao resultado.

## Índice de Calculadoras

<table data-view="cards" data-full-width="false" data-search="true"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><h3><i class="fa-network-wired" style="color:$primary;">:network-wired:</i></h3></td><td><h4>Calculadora de Sub-redes</h4></td><td>Pesquise intervalos CIDR, máscaras de sub-rede, máscaras curinga, contagem de hosts, tamanho do bloco e exemplos de subnetting.</td><td><a href="/pages/8db048cc35bb2dac7f4a07393abdd0d0ea0aec0b">/pages/8db048cc35bb2dac7f4a07393abdd0d0ea0aec0b</a></td></tr><tr><td><h3><i class="fa-key" style="color:$primary;">:key:</i></h3></td><td><h4>Calculadora de Permissões do Linux</h4></td><td>Converta permissões octais para notação simbólica, revise bits SUID/SGID/sticky e identifique o impacto na escalada de privilégios.</td><td><a href="/pages/e9919cde80df0f3d52932da2e7bc5f34fb17ee40">/pages/e9919cde80df0f3d52932da2e7bc5f34fb17ee40</a></td></tr><tr><td><h3><i class="fa-clock" style="color:$primary;">:clock:</i></h3></td><td><h4>Calculadora de Expressão Cron</h4></td><td>Pesquise expressões cron comuns, leia seu significado em linguagem natural e revise verificações de escalada de privilégios via cron.</td><td><a href="/pages/00385121a54a89357c8e44772fc8d23dc70dc39d">/pages/00385121a54a89357c8e44772fc8d23dc70dc39d</a></td></tr></tbody></table>

## Uso Rápido

| Precisa                             | Pesquisar por                         |
| ----------------------------------- | ------------------------------------- |
| Máscara de rede e contagem de hosts | `/24`, `/27`, `/30`                   |
| Conversão de permissões do Linux    | `755`, `644`, `4755`, `rwxr-xr-x`     |
| Significado da agenda cron          | `*/5 * * * *`, `0 0 * * *`, `@reboot` |


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://hacking-notes.jord4n.pro/pt-br/hacking-tools/calculators.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.