Logstash Grok and Regular Expressions with Practical Examples
Regular exrpession primitives relevant to Grok Control and whitespace escapes \cX: Control character for letter X (A–Z). Example: \cM is carriage return. \f: Form feed (0x0C). \n: Newline (0x0A). \r: Carriage return (0x0D). \t: Horizontal tab (0x09). \v: Vertical tab (0x0B). \s: Any whitespace (spac...