{"id":"grep-regex-search-tool","text":"grep searches files for lines matching regular expressions. Key flags: -i (case-insensitive), -v (invert match), -r (recursive), -n (line numbers), -E (extended regex). Supports anchors ^ and $.","truth_value":"IN","source":"repo:entries/2026/03/04/grep-regex.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"grep-regex-search-tool","truth_value":"IN","reason":"premise"}]}}