A fast, Rust-based command-line tool that colorizes the output of other commands using regex-based rules. Drop-in replacement for grc with better performance.
- Fast: 10x faster than original grc
- Rich Colorization: ANSI colors with count/replace support
- Compatible: Works with existing grc configuration files
- Shell Integration: Auto-generates aliases
- 80+ Commands: Pre-configured for common tools
- Smart Regex: Hybrid engine with optional fancy-regex support
- Lightweight: Minimal dependencies (2 core deps)
Shell (curl):
curl -sS https://raw.githubusercontent.com/lazywalker/rgrc/master/script/install.sh | shCargo:
cargo install rgrc --features embed-configsHomebrew:
brew tap lazywalker/rgrc
brew install rgrcArch Linux:
yay -S rgrcAlpine Linux:
# Enable the testing repository (add edge testing)
doas cp /etc/apk/repositories /etc/apk/repositories.bak
echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" | doas tee -a /etc/apk/repositories
doas apk update
doas apk add rgrcNixOS:
nix-shell -p rgrcDebian/Ubuntu:
# Download the latest .deb from releases and install
sudo dpkg -i rgrc_<version>_amd64.deb# Colorize any command
rgrc ping -c 4 google.com
rgrc docker ps
rgrc df -h
# Set up aliases (recommended)
echo 'eval "$(rgrc --aliases)"' >> ~/.bashrc
source ~/.bashrc
# Then use commands directly
ping -c 4 google.com # automatically colorized
docker ps # automatically colorizedSystem: df, free, ps, top, vmstat, iostat, uptime, mount
Network: ping, traceroute, netstat, ss, ip, curl, dig
Development: gcc, make, docker, kubectl, git, mvn, go
Files: ls, find, du, fdisk, lsof, stat
See full list in share/ directory
Usage: rgrc [OPTIONS] COMMAND [ARGS...]
Options:
--color, --colour Override color output (on|off|auto)
--aliases Output shell aliases for available binaries
--all-aliases Output all shell aliases
--except CMD,.. Exclude commands from alias generation
--completions SHELL Print shell completion script for SHELL (bash|zsh|fish|ash)
--flush-cache Flush and rebuild cache directory
--config, -c NAME Explicit config file name (e.g., df to load conf.df)
--help, -h Show this help message
--version, -V Show installed rgrc version and exitCreate ~/.config/rgrc/conf.mycommand:
regexp=^ERROR
colours=red,bold
regexp=^WARNING
colours=yellow
regexp=^INFO
colours=green
Add to ~/.rgrc:
mycommand
conf.mycommand
# Bash
rgrc --completions bash > /etc/bash_completion.d/rgrc
# Zsh
rgrc --completions zsh > ~/.zfunc/_rgrc
# Fish
rgrc --completions fish > ~/.config/fish/completions/rgrc.fish# Match only once per line
regexp=^\s*#
colours=cyan
count=once
# Replace matched text (with backreferences)
regexp=(ERROR|WARN|INFO)
colours=red,yellow,green
replace=[\1]
# Stop processing after match
regexp=^FATAL
colours=red,bold
count=stop
Count options: once, more (default), stop
Replace: Supports \1, \2, etc.
MIT - see LICENSE for details.
Inspired by grc by Radovan Garabík and grc-rs by Lars Christensen.