# LibTmux::Async::Server#list_sessions

- **Module:** LibTmux::Async
- **Package:** libtmux-async
- **Language:** Ruby
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-ruby/blob/da7b6191b9439e3c84fa1c9eeaa9168263ee7af4/gems/libtmux/lib/libtmux/server.rb#L266
- **Public owner:** LibTmux::Server#list_sessions
- **Page:** https://libtmux.org/en/ruby/v0.1.1/reference/libtmux-async-server-list_sessions/

```
def list_sessions: (
  ?timeout: ::Numeric,
  ?cancel: untyped
) -> ::Array[::LibTmux::Session]
```

Behavior: Live acquisition.

Behavior contract: Live acquisition.

## Parameters

- `timeout` (`::Numeric`)
- `cancel` (`untyped`)

## tmux command

The tmux commands behind `list_sessions`.

- [`list-sessions`](/en/tmux/latest/manual/list-sessions/)

## tmux C API

The C declarations in tmux that implement these commands.

- [`cmd_list_sessions_entry`](/en/tmux/latest/reference/c-variable-cmd_list_sessions_entry/) (attribute)
- [`cmd_list_sessions_exec`](/en/tmux/latest/reference/c-function-cmd-list-sessions-c-cmd_list_sessions_exec/) (function)