# tmux.CommandResult.ExitCode

- **Module:** tmux.CommandResult
- **Package:** github.com/libtmux/libtmux-go/tmux
- **Language:** Go
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-go/blob/52968a3181c1c9e6d1b26c565d4b170968ae61c0/tmux/command.go#L86
- **Page:** https://libtmux.org/en/go/latest/reference/tmux-commandresult-exitcode/

ExitCode is tmux's completed process exit code, or -1 when no tmux command ran: this package refused the request, or a transport failed before tmux answered. A negative code is therefore never tmux's opinion of the request, and an error carrying one has a reason of its own.