# SUBSCRIBE

```json metadata
{
  "schema_version": 2,
  "title": "SUBSCRIBE",
  "description": "Listens for messages published to channels.",
  "categories": ["docs","develop","stack","oss","rs","rc","oss","kubernetes","clients"],
  "arguments": [{"display_text":"channel","multiple":true,"name":"channel","type":"string"}],
  "syntax_fmt": "SUBSCRIBE channel [channel ...]",
  "complexity": "O(N) where N is the number of channels to subscribe to.",
  "group": "pubsub",
  "command_flags": ["pubsub","noscript","loading","stale"],
  "acl_categories": ["@pubsub","@slow"],
  "since": "2.0.0",
  "arity": -2,
  "tableOfContents": {"sections":[{"id":"required-arguments","title":"Required arguments"},{"id":"redis-software-and-redis-cloud-compatibility","title":"Redis Software and Redis Cloud compatibility"},{"id":"return-information","title":"Return information"}]}

,
  "codeExamples": []
}
```

Subscribes the client to the specified channels.

Once the client enters the subscribed state it is not supposed to issue any
other commands, except for additional `SUBSCRIBE`, [`SSUBSCRIBE`](https://redis.io/docs/latest/commands/ssubscribe), [`PSUBSCRIBE`](https://redis.io/docs/latest/commands/psubscribe), [`UNSUBSCRIBE`](https://redis.io/docs/latest/commands/unsubscribe), [`SUNSUBSCRIBE`](https://redis.io/docs/latest/commands/sunsubscribe), 
[`PUNSUBSCRIBE`](https://redis.io/docs/latest/commands/punsubscribe), [`PING`](https://redis.io/docs/latest/commands/ping), [`RESET`](https://redis.io/docs/latest/commands/reset) and [`QUIT`](https://redis.io/docs/latest/commands/quit) commands.
However, if RESP3 is used (see [`HELLO`](https://redis.io/docs/latest/commands/hello)) it is possible for a client to issue any commands while in subscribed state.

For more information, see [Pub/sub](https://redis.io/docs/latest/develop/pubsub).

## Required arguments

<details open><summary><code>channel [channel ...]</code></summary>

One or more channels to subscribe to.

</details>

## Redis Software and Redis Cloud compatibility

| Redis<br />Software | Redis<br />Cloud | <span style="min-width: 9em; display: table-cell">Notes</span> |
|:----------------------|:-----------------|:------|
| <span title="Supported">&#x2705; Standard</span><br /><span title="Supported"><nobr>&#x2705; Active-Active</nobr></span> | <span title="Supported">&#x2705; Standard</span><br /><span title="Supported"><nobr>&#x2705; Active-Active</nobr></span> |  |

## Return information

**RESP2:**

When successful, this command doesn't return anything. Instead, for each channel, one message with the first element being the string `subscribe` is pushed as a confirmation that the command succeeded.

**RESP3:**

When successful, this command doesn't return anything. Instead, for each channel, one message with the first element being the string `subscribe` is pushed as a confirmation that the command succeeded.