Regex - Regular Expression Matcher

Search text using regular expressions to find, extract, and replace patterns. Supports standard regex syntax with capturing groups, alternation, and quantifiers for advanced text processing.

Usage

regex-tool [options] <pattern> <file>

Options

• -i: Case-insensitive matching
• -o: Show only matched text
• -r REPLACE: Replace matches with text
• -g: Global match (all occurrences)

Examples

regex-tool "\d{4}-\d{2}-\d{2}" dates.txt
regex-tool -i "error|warning" log.txt
regex-tool -r "[REDACTED]" "\b\d{3}-\d{2}-\d{4}\b" data.txt