# control.protocol.write_line

- **Module:** control.protocol
- **Package:** libtmux
- **Language:** Rust
- **Kind:** function
- **Source:** https://github.com/libtmux/libtmux-rs/blob/8a648c0894dfffc9303583f753b6c8ae01f2fe76/crates/libtmux/src/control/protocol.rs#L72
- **Page:** https://libtmux.org/reference/rs/control-protocol-write_line/

```
control.protocol.write_line(stdin: &mut ChildStdin, line: &str) -> Result<(), Error>
```

Write one command line to the connection.