title: $:/language/Help/pipe
description: Pipe data to/from external processes

Pipe data to/from external processes.

```
--pipe <pipename> <filter> <incomingTitle> <arguments>...
```

* ''pipename'': identifies the pipe, matching the name defined in the `tiddlywiki.info` file
* ''filter'': identifies the tiddlers to be passed to the pipe
* ''incomingTitle'': provides a title to be applied to incoming tiddlers for the `raw-text` output format
* ''arguments'': passed through to external task pipes, and ignored for other types of pipe
