Recursively searches directories for a regex pattern

 ripgrep is a line-oriented search tool that recursively searches your current
 directory for a regex pattern while respecting your gitignore rules and
 automatically skip hidden files/directories (smart filtering) and binary files.
 ripgrep is similar to other popular search tools like The Silver Searcher, ack
 and grep.
 .
 ripgrep is generally faster than both The Silver Searcher and GNU grep. It
 defaults to recursive directory search and won't search files ignored by your
 `.gitignore` files. Use ripgrep if you like speed, filtering by default, fewer
 bugs, and Unicode support.
 .
 On the other hand, if you like multiline search, then ripgrep may not quite
 meet your needs (yet), and it will never support fancy regex features such as
 backreferences or lookaround