type ShellExecutableResolution = {
    directIndex: number;
    effectiveIndex: number;
    directExecutable?: string;
    effectiveExecutable?: string;
    executionDisposition: ShellExecutionDisposition;
};
type ShellExecutionDisposition = "proven" | "not-executed" | "unknown";
export declare function directShellExecutable(command: string): string | undefined;
export declare function effectiveShellExecutable(command: string): string | undefined;
export declare function resolveShellExecutableWords(words: readonly string[]): ShellExecutableResolution;
export declare function effectiveShellExecutableIndex(words: readonly string[]): number;
export declare function shellCommandWords(command: string): string[] | undefined;
export {};