Claude Code uses ripgrep as it’s default tool for searching the files. Anhropic considered it so useful that it has it built-in (bundled).
So is it worth using it? So far my favourite grep replacement was ack. It’s author created a nice grep tools comparison page.
I have tested just the raw speed of grep vs ack vs rg (ripgrep). ripgrep was fastest, likely due to the fact that it searched my whole directory using several threads in parallel. Any way - there you go - switch to “rg” utility:
sudo apt install ripgrep