regular-expressions

Regular expressions (regex) are powerful pattern-matching tools used for text processing and data manipulation. In networking contexts, regex helps with parsing log files, configuring devices, BGP routes, and filtering network traffic.

They allow for complex string matching and extraction, enabling efficient searching, replacing, and validation of text data. Regex syntax uses special characters and metacharacters to define search patterns, making it possible to match specific sequences, ranges, or types of characters within larger text bodies.