# LibTmux::Session#kill

- **Module:** LibTmux
- **Package:** libtmux
- **Language:** Ruby
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-ruby/blob/dcc9f8b5a6970144a9e7d80cd5f381d8f6198372/gems/libtmux/lib/libtmux/operations.rb#L254
- **Page:** https://libtmux.org/en/ruby/v0.1.0.alpha.2/reference/libtmux-session-kill/

tmux command: [`kill-session`](/en/tmux/latest/manual/kill-session/)

```
def kill: (
  ?expected_windows: ::Array[::LibTmux::EntityRef]?,
  ?expected_panes: ::Array[::LibTmux::EntityRef]?,
  ?timeout: ::Numeric,
  ?cancel: untyped
) -> ::LibTmux::CommandResult
```

Both allowlists are required for guarded deletion of a changing topology.

Behavior contract: Entity removal.

## In other ports

### End a session

- Python: [`libtmux.Session.kill`](/en/py/latest/reference/libtmux-session-kill/) (method)
- Lua: [`libtmux.Session:kill`](/en/lua/latest/reference/libtmux-session-kill/) (method)
- TypeScript: [`session.Session.kill`](/en/ts/latest/reference/session-session-kill/) (method)
- Rust: [`session.Session.kill`](/en/rs/latest/reference/session-session-kill/) (method)
- Go: [`tmux.Session.Kill`](/en/go/latest/reference/tmux-session-kill/) (method)
- Java: [`io.github.libtmux.Session.Session.kill`](/en/java/latest/reference/io-github-libtmux-session-session-kill/) (method)
- C#: [`LibTmux.Session.KillAsync`](/en/csharp/latest/reference/libtmux-session-killasync/) (method)
- C++: [`libtmux::Session::kill`](/en/cxx/latest/reference/libtmux-session-kill/) (method)
- Swift: [`Server.kill(_:)`](/en/swift/latest/reference/server-kill(_-)/) (method)