• https://github.com/ggreer/the_silver_searcher
• https://geoff.greer.fm/ag/
• 코드 검색 도구.
• Vim과 통합 가능 - vim ag plugin

sudo pacman -S the_silver_searcher  # arch linux 
sudo apt install silversearcher-ag  # ubuntu

• The Silver Searcher, a better UNIX search tool - DNSimple Blog

Usage: ag [FILE-TYPE] [OPTIONS] PATTERN [PATH]