Replace, Preprocess, and Encodings

rg --replace 'logger.error($1)' 'console\.error\((.*)\)' src/

# Show what matched lines would look like after substitution.

rg --replace '$2_$1' '(\w+)-(\w+)' sample.txt

# Reuse matched text in the replacement output.

rg -o --replace '$1' 'name="([^"]+)"' template.html

# Combine `-o` and `--replace` to extract transformed matches.

rg -P --replace '$1' '(?<=id=)\d+' data.txt

# Use PCRE2 pattern features with replacement preview.

rg --line-number --no-heading 'TODO' . | fzf

# Pipe results into a fuzzy finder before editing.

rg -z 'Exception' logs/

# Enable searching in common compressed formats.

rg --pre 'pdftotext -layout' 'invoice' docs/*.pdf

# Transform file content before ripgrep searches it.

rg --pre 'pandoc -t plain' --pre-glob '*.docx' 'roadmap' docs/

# Limit preprocessors to matching paths.

tar -xOf backup.tar config/app.yml | rg 'database:'

# Expand an archive stream and search it.

rg -a 'sqlite' mystery.bin

# Treat binary files as text input.

rg --encoding utf-16le 'Version' report.txt

# Decode a file using a specific encoding.

rg --encoding shift_jis 'エラー' app.log

# Decode legacy encoded content before matching.

rg 'TODO' README.txt

# Search Windows-style files as normal text.

rg -N --replace '$1' '"([^"]+)"' data.json

# Print cleaner replacement previews.

rg -l -0 'TODO' . | xargs -0 sed -n '1p'

# Use NUL separators to make filename parsing safe.