# Libtmux_eio.Client.switch_client_at

- **Module:** Libtmux_eio
- **Package:** libtmux-eio
- **Language:** OCaml
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-ocaml/blob/205dfda49742592b479247049d186956e4a4cfe9/eio/libtmux_eio.mli#L235
- **Public owner:** Libtmux_eio
- **Page:** https://libtmux.org/en/ocaml/latest/reference/libtmux_eio-client-switch_client_at/

```
val switch_client_at :
  ?update_environment:bool ->
  t ->
  Libtmux.Client_name.t ->
  session:Libtmux.Session.target -> (unit, Libtmux.Error.t) result
```

Switch the client currently bearing this name to the bound session. Environment updates are disabled by default. This can move either a terminal client or a control client; it does not open a new terminal.

## Parameters

- `update_environment?` (`bool`)
- `arg1` (`t`)
- `arg2` (`Libtmux.Client_name.t`)
- `session` (`Libtmux.Session.target`)

## tmux command

The tmux commands behind `switch_client_at`.

- [`switch-client`](/en/tmux/latest/manual/switch-client/)

## tmux C API

The C declarations in tmux that implement these commands.

- [`cmd_switch_client_entry`](/en/tmux/latest/reference/c-variable-cmd_switch_client_entry/) (attribute)
- [`cmd_switch_client_exec`](/en/tmux/latest/reference/c-function-cmd-switch-client-c-cmd_switch_client_exec/) (function)

## In other ports

Switch a client to another session

| Language | Equivalent |
| --- | --- |
| Python | [`libtmux.Server.switch_client`](/en/py/latest/reference/libtmux-server-switch_client/) (method) |
| Haskell | No public Haskell equivalent is implemented; the current modules expose scalar values and version parsing. |
| TypeScript | no equivalent on `Server` |
| Rust | no equivalent on `Server` |
| Go | [`tmux.Server.SwitchClient`](/en/go/latest/reference/tmux-server-switchclient/) (method) |
| Java | no equivalent on `Server` |
| C# | [`LibTmux.Server.SwitchClientAsync`](/en/csharp/latest/reference/libtmux-server-switchclientasync/) (method) |
| C++ | no equivalent on `Server` |
| Swift | no equivalent on `Server` |
| Perl | No dedicated equivalent in the selected Perl surface. Explicit Server::cmd remains available for native tmux commands. |

No equivalent is recorded in Ruby, Lua, PowerShell, Julia, Erlang, Elixir, Common Lisp, Clojure, Kotlin, Scala or F#.