rg

Fast parallel search with regex, respects .gitignore by default.

Quick Reference

rg PATTERN              # Search current directory
rg PATTERN path/        # Search specific path
rg -i PATTERN           # Case-insensitive
rg -w PATTERN           # Whole word only
rg -l PATTERN           # List matching files only
rg -c PATTERN           # Count matches per file

Key Flags

| Flag | Purpose | |------|----------| | -i / --ignore-case | Case-insensitive search | | -w / --word-regexp | Match whole words only | | -l / --files-with-matches | Show only filenames | | -c / --count | Count matches per file | | -A NUM / --after-context NUM | Show N lines after match | | -B NUM / --before-context NUM | Show N lines before match | | -C NUM / --context NUM | Show N lines before and after | | --type TYPE | Search only specific file type | | -g GLOB / --glob GLOB | Include/exclude by glob (prepend ! to exclude) | | -F / --fixed-strings | Treat PATTERN as literal string, not regex | | --no-ignore | Ignore .gitignore rules |

Common Patterns

# Find in Python files only
rg --type py 'class Foo'

# Search excluding a directory
rg -g '!node_modules' PATTERN

# Show matches with context
rg -C3 'error'

# Case-insensitive, whole-word match
rg -iw 'TODO'

# Count total matches
rg -c 'pattern' | awk -F: '{sum+=$2} END {print sum}'