Search Directories and Files With a Grep Utility

To demonstrate traversing and searching directory structures, we create a simple utility that works like Unix grep. This utility uses recursive_directory_iterator to traverse nested directories and searches files for matches with a regular expression.

How to do it

In this recipe, we write a simple grep that traverses directories to search files with a regular expression:

• We start with some convenience aliases where match_v is a vector of regular expression match results: