# b command (PROC processor)

The b command decrements (moves the
pointer back) the currently active input buffer pointer by one ’word’
position.

**Synonyms:** bo

## Syntax

```
b
```

## Examples

| Active Input Buffer | Active Output Buffer After Running the b command |
| --- | --- |
| list bob with hair eq green ^ | list bob with hair eq green ^ |

## See also

- [f command (PROC processor)](https://d3codex.com/proc/f-command-proc-processor/)
- [ip command](https://d3codex.com/proc/ip-command/)
- [PROC processor](https://d3codex.com/proc/proc-processor/)
- [s command (PROC processor)](https://d3codex.com/proc/s-command-proc-processor/)

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Source: https://d3codex.com/proc/b-command-proc-processor/ - part of the D3Codex reference.