# libtmux.core/environment!

- **Module:** libtmux.core
- **Package:** io.github.libtmux:libtmux-clojure
- **Language:** Clojure
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-java/blob/5f88402151ff08fc0390dd438b90963692ec3fe4/libtmux-clojure/src/main/clojure/libtmux/core.clj#L432
- **Public owner:** libtmux.core
- **Page:** https://libtmux.org/en/clojure/latest/reference/libtmux-core-environment/

```
(environment! value)

(environment! value scope)
```

Returns values and explicitly removed names, preserving removal versus absence.

[[unset-environment!]] allows inheritance; [[remove-environment!]] masks a name.

## Parameters

- `value`
- `scope` (for `environment!(value, scope)`)

## tmux command

The tmux commands behind `environment!`.

- [`show-environment`](/en/tmux/latest/manual/show-environment/)

## tmux C API

The C declarations in tmux that implement these commands.

- [`cmd_show_environment_entry`](/en/tmux/latest/reference/c-variable-cmd_show_environment_entry/) (attribute)
- [`cmd_show_environment_exec`](/en/tmux/latest/reference/c-function-cmd-show-environment-c-cmd_show_environment_exec/) (function)