ripgrep (rg)

ripgrep is a line-oriented search tool that recursively searches your current directory for a regex pattern while respecting your gitignore rules. ripgrep has first class support on Windows, macOS and Linux, with binary downloads available for every release. ripgrep is similar to other popular search tools like The Silver Searcher, ack and grep.

Linux build status Windows build status

Dual-licensed under MIT or the UNLICENSE.

CHANGELOG

Please see the CHANGELOG for a release history.

Documentation quick links

Screenshot of search results

A screenshot of a sample search with ripgrep

Quick examples comparing tools

This example searches the entire Linux kernel source tree (after running make defconfig && make -j8) for [A-Z]+_SUSPEND, where all matches must be words. Timings were collected on a system with an Intel i7-6900K 3.2 GHz, and ripgrep was compiled with SIMD enabled.

Please remember that a single benchmark is never enough! See my blog post on ripgrep for a very detailed comparison with more benchmarks and analysis.

| Tool | Command | Line count | Time | | ---- | ------- | ---------- | ---- | | ripgrep (Unicode) | rg -n -w '[A-Z]+_SUSPEND' | 450 | 0.106s | | git grep | LC_ALL=C git grep -E -n -w '[A-Z]+_SUSPEND' | 450 | 0.553s | | The Silver Searcher | ag -w '[A-Z]+_SUSPEND' | 450 | 0.589s | | git grep (Unicode) | LC_ALL=en_US.UTF-8 git grep -E -n -w '[A-Z]+_SUSPEND' | 450 | 2.266s | | sift | sift --git -n -w '[A-Z]+_SUSPEND' | 450 | 3.505s | | ack | ack -w '[A-Z]+_SUSPEND' | 1878 | 6.823s | | The Platinum Searcher | pt -w -e '[A-Z]+_SUSPEND' | 450 | 14.208s |

(Yes, ack has a bug.)

Here's another benchmark that disregards gitignore files and searches with a whitelist instead. The corpus is the same as in the previous benchmark, and the flags passed to each command ensure that they are doing equivalent work:

| Tool | Command | Line count | Time | | ---- | ------- | ---------- | ---- | | ripgrep | rg -L -u -tc -n -w '[A-Z]+_SUSPEND' | 404 | 0.079s | | ucg | ucg --type=cc -w '[A-Z]+_SUSPEND' | 390 | 0.163s | | GNU grep | egrep -R -n --include='*.c' --include='*.h' -w '[A-Z]+_SUSPEND' | 404 | 0.611s |

(ucg has slightly different behavior in the presence of symbolic links.)

And finally, a straight-up comparison between ripgrep and GNU grep on a single large file (~9.3GB, OpenSubtitles2016.raw.en.gz):

| Tool | Command | Line count | Time | | ---- | ------- | ---------- | ---- | | ripgrep | rg -w 'Sherlock [A-Z]\w+' | 5268 | 2.108s | | GNU grep | LC_ALL=C egrep -w 'Sherlock [A-Z]\w+' | 5268 | 7.014s |

In the above benchmark, passing the -n flag (for showing line numbers) increases the times to 2.640s for ripgrep and 10.277s for GNU grep.

Why should I use ripgrep?

In other words, use ripgrep if you like speed, filtering by default, fewer bugs, and Unicode support.

Why shouldn't I use ripgrep?

I'd like to try to convince you why you shouldn't use ripgrep. This should give you a glimpse at some important downsides or missing features of ripgrep.

In other words, if you like fancy regexes or multiline search, then ripgrep may not quite meet your needs (yet).

Is it really faster than everything else?

Generally, yes. A large number of benchmarks with detailed analysis for each is available on my blog.

Summarizing, ripgrep is fast because:

Feature comparison

Andy Lester, author of ack, has published an excellent table comparing the features of ack, ag, git-grep, GNU grep and ripgrep: https://beyondgrep.com/feature-comparison/

Installation

The binary name for ripgrep is rg.

Archives of precompiled binaries for ripgrep are available for Windows, macOS and Linux. Users of platforms not explicitly mentioned below (such as Debian) are advised to download one of these archives.

Linux binaries are static executables. Windows binaries are available either as built with MinGW (GNU) or with Microsoft Visual C++ (MSVC). When possible, prefer MSVC over GNU, but you'll need to have the Microsoft VC++ 2015 redistributable installed.

If you're a macOS Homebrew or a Linuxbrew user, then you can install ripgrep either from homebrew-core, (compiled with rust stable, no SIMD):

$ brew install ripgrep

or you can install a binary compiled with rust nightly (including SIMD and all optimizations) by utilizing a custom tap:

$ brew tap burntsushi/ripgrep https://github.com/BurntSushi/ripgrep.git $ brew install burntsushi/ripgrep/ripgrep-bin

If you're a Windows Chocolatey user, then you can install ripgrep from the official repo:

$ choco install ripgrep

If you're an Arch Linux user, then you can install ripgrep from the official repos:

$ pacman -S ripgrep

If you're a Gentoo user, you can install ripgrep from the official repo:

$ emerge sys-apps/ripgrep

If you're a Fedora 27+ user, you can install ripgrep from official repositories.

$ sudo dnf install ripgrep

If you're a Fedora 24+ user, you can install ripgrep from copr:

$ sudo dnf copr enable carlwgeorge/ripgrep $ sudo dnf install ripgrep

If you're a RHEL/CentOS 7 user, you can install ripgrep from copr:

$ sudo yum-config-manager --add-repo=https://copr.fedorainfracloud.org/coprs/carlwgeorge/ripgrep/repo/epel-7/carlwgeorge-ripgrep-epel-7.repo $ sudo yum install ripgrep

If you're a Nix user, you can install ripgrep from nixpkgs:

$ nix-env --install ripgrep $ # (Or using the attribute name, which is also ripgrep.)

If you're an Ubuntu user, ripgrep can be installed from the snap store. * Note that if you are using 16.04 LTS or later, snap is already installed. * For older versions you can install snap using this guide.

sudo snap install rg

If you're a Rust programmer, ripgrep can be installed with cargo. * Note that the minimum supported version of Rust for ripgrep is 1.20, although ripgrep may work with older versions. * Note that the binary may be bigger than expected because it contains debug symbols. This is intentional. To remove debug symbols and therefore reduce the file size, run strip on the binary.

$ cargo install ripgrep

ripgrep isn't currently in any other package repositories. I'd like to change that.

Building

ripgrep is written in Rust, so you'll need to grab a Rust installation in order to compile it. ripgrep compiles with Rust 1.20 (stable) or newer. Building is easy:

$ git clone https://github.com/BurntSushi/ripgrep $ cd ripgrep $ cargo build --release $ ./target/release/rg --version 0.1.3

If you have a Rust nightly compiler and a recent Intel CPU, then you can enable optional SIMD acceleration like so:

RUSTFLAGS="-C target-cpu=native" cargo build --release --features 'simd-accel avx-accel'

If your machine doesn't support AVX instructions, then simply remove avx-accel from the features list. Similarly for SIMD.

Running tests

ripgrep is relatively well-tested, including both unit tests and integration tests. To run the full test suite, use:

$ cargo test --all

from the repository root.