# link proc

Source: https://ref.dm-lang.org/proc/link

### Format
> `O << link(url)`

This causes the recipient (O) to view the specified url. The url could be a web or BYOND address. In the latter case, the player will disconnect from the current world and connect to the specified one.

The format of a BYOND url is as follows:

```dm /link/
byond://address:port?TopicData
```

To access a registered world, address:port may be replaced by the registered name in the hub. The optional topic data is processed by the world once the player has connected. If only a topic is specified, the current world processes it.

```dm /link/
usr << link("byond://byond.com:6000") //BYOND address
usr << link("http://www.byond.com")   //web address
usr << link("?myTopic")                //topic
```

### See also
- [\<\< output operator](https://ref.dm-lang.org/operator/lessless/output.md)
- [Topic proc (client)](https://ref.dm-lang.org/client/proc/Topic.md)
- [file proc](https://ref.dm-lang.org/proc/file.md)
- [run proc](https://ref.dm-lang.org/proc/run.md)