/**
 * File Organizer MCP Server v3.4.2
 * File System Utilities
 */
/**
 * Check if a file exists
 * @param filePath - Path to check
 * @returns True if file exists
 */
export declare function fileExists(filePath: string): Promise<boolean>;
/**
 * Ensure a directory exists, creating it if necessary
 * @param dirPath - Directory path
 */
export declare function ensureDir(dirPath: string): Promise<void>;
/**
 * Expand home directory (~) in path
 * @param inputPath - Path that may contain ~
 * @returns Path with ~ expanded
 */
export declare function expandHomePath(inputPath: string): string;
/**
 * Expand environment variables in path
 * Supports: $VAR, ${VAR}, %VAR%
 * Also handles escape sequences: $$ and \$ become literal $
 * @param inputPath - Path with env vars
 * @returns Path with env vars expanded
 */
export declare function expandEnvVars(inputPath: string): string;
/**
 * Normalize path for cross-platform compatibility
 * @param inputPath - Path to normalize
 * @returns Normalized path
 */
export declare function normalizePath(inputPath: string): string;
/**
 * Check if child path is contained within parent path
 * @param parentPath - Parent directory
 * @param childPath - Child path to check
 * @returns True if child is within parent
 */
export declare function isSubPath(parentPath: string, childPath: string): boolean;
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