> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sqd.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Inspect logs

> Inspect deployment logs from squids running on SQD Cloud — stream stdout/stderr from processor and GraphQL containers with filters and time ranges.

SQD Cloud automatically collects the logs emitted by the squid processor, its API server and its database. Please use the [built-in SDK logger](/en/sdk/squid-sdk/reference/logger) throughout your code when developing for SQD Cloud. You can set the severity flags for squids running in the Cloud via `SQD_DEBUG`, `SQD_TRACE` or `SQD_INFO` - see [Environment Variables](/en/cloud/resources/env-variables).

To inspect and follow the squid logs from all the squid services, use [`sqd logs`](/en/cloud/reference/cli/logs):

```bash theme={"system"}
sqd logs -n <name> -s <slot> -f
```

or

```bash theme={"system"}
sqd logs -n <name> -t <tag> -f
```

<details>
  <summary>For older version-based deployments...</summary>

  ...the slot string is `v$\{version\}`, so use

  ```bash theme={"system"}
  sqd logs -n <name> -s v<version> -f
  ```

  Check out the [Slots and tags guide](/en/cloud/resources/slots-and-tags) to learn more.
</details>

There are additional flags to filter the logs:

* `-f` to follow the logs
* `-c` allows filtering by the container (can be `processor`, `db`, `db-migrate` and `query-node`)
* `-l` allows filtering by the severity
* `-p` number of lines to fetch (default: `100`)
* `--since` cut off by the time (default: `1d`). Accepts the notation of the [`ms` library](https://www.npmjs.com/package/ms): `1d`, `10h`, `1m`.

### Example

```bash theme={"system"}
sqd logs squid-substrate-template@v1 -f -c processor -l info --since 1d
```