파일의 Readable/Writable/Executable/Deletable 상태 확인하기.

// 파일의 Readable/Writable/Executable/Deletable 상태 확인하기.
    NSFileManager *filemgr = [NSFileManager defaultManager];
    if ([filemgr isWritableFileAtPath:@"filePath"] == YES)
    {
        NSLog(@"File is writable");
    }
    else
    {
        NSLog(@"File is read only");
    }
   
    isReadableFileAtPath, isWritableFileAtPath, isExecutableFileAtPath