Grep

POSIX grep

• grep -r -l "pattern" .
  • -r = recurse
  • -l = names only
  • pattern then the starting point
• grep -v, --invert-match = select non-matching lines (a NOT operation!)

ripgrep

• rg searchstring --iglob '!*.ipynb' - exclude any file whose filename matches the glob pattern (using single quotes)
  • rg title --iglob '!*.ipynb' --iglob '!*.json' - multiple patterns
• -l, --files-with-matches - Print only the paths with at least one match and suppress match contents.