# tmux.Server.IfShell

- **Module:** tmux.Server
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** method
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/server_exec.go#L283
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-server-ifshell/

```
tmux.Server.IfShell(ctx: context.Context, request: IfShellRequest) -> error
```

IfShell executes ThenCommand when ShellCommand succeeds and ElseCommand, if present, when it fails. A completed stderr result is an error; cancellation can interrupt delivery without proving that tmux did not execute a branch.