# types.SpawnOptions.input

- **Module:** types
- **Package:** libtmux
- **Language:** TypeScript
- **Kind:** property
- **Source:** https://github.com/libtmux/libtmux-ts/blob/ad09eaef7ffff40f510989ee0695852c44a31576/packages/libtmux/src/types.ts#L541
- **Page:** https://libtmux.org/en/ts/latest/reference/types-spawnoptions-input/

The program's stdin, as bytes or UTF-8 text. It is written to a private file the program reads, so it passes through no shell or tmux command, and the terminal stays the program's output. Needs the tmux server on this machine, as [`stream`](/en/ts/latest/reference/types-spawnoptions-stream/) does.