echo

type EchoOptions struct {
	NoNewline      bool // -n: do not output trailing newline
	EnableEscapes  bool // -e: enable interpretation of backslash escapes
	DisableEscapes bool // -E: disable interpretation of backslash escapes (default)
	JSON           bool // --json: output as JSON
}

type EchoResult struct {
	Output string   `json:"output"`
	Args   []string `json:"args"`
}