# tmuxtest.ServerOptions.FixedShell

- **Module:** tmuxtest.ServerOptions
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-go/blob/5f808882015a975a65acc7f9da5b3ff0d5cbdc91/tmux/tmuxtest/harness.go#L110
- **Page:** https://libtmux.org/reference/go/tmuxtest-serveroptions-fixedshell/

FixedShell gives panes without an explicit command a POSIX shell with no startup files and the prompt ShellPrompt. RunInPane sets it; the default preserves tmux process behavior for tests that need it.