# penv command

The penv BASIC program displays a list
of all user D3 shell variables and the contents of those variables.

## Syntax

```
penv
```

## See also

- [@ shell variable](https://d3codex.com/tcl/shell-variable/)
- [set command](https://d3codex.com/tcl/set-command/)
- [u91 user exit](https://d3codex.com/pickbasic-flashbasic/u91-user-exit/)
- [unset command](https://d3codex.com/tcl/unset-command/)
- [var](https://d3codex.com/definitions/var/)

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Source: https://d3codex.com/tcl/penv-command/ - part of the D3Codex reference.