C++, Java, JavaScript, and possibly other programming languages all have a string function that searches a string for *any* character in a specified string pattern. For example, C++'s [`std::string::find_first_of`](http://www.cplusplus.com/reference/string/string/find_first_of/) works like this: 

```
std::cout << "Vowel found in : " << "Search me for vowels".find_first_of("aeiou") << std::endl;
// should print "Vowel found in : 1". 

```

Is there any equivalent of that in CMD? I tried searching "dos string functions" but couldn't seem to find anything.