# 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/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/tmuxtest/harness.go#L113
- **Page:** https://libtmux.org/en/go/latest/reference/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.