The regular expression removes the quotation marks and any leading or trailing spaces around the quotation marks. This search creates an event with three fields, _time, search, and orig_search.
#SPLUNK SPL HOW TO#
This example shows how to use the rex command sed expression with capture replace using \1, \2 to reuse captured pieces of a string. Use a sed expression with capture replace for strings For example, if the rex expression is "(?./XXXX-XXXX-XXXX-/g" 5. Default: 1 offset_field Syntax: offset_field= Description: Creates a field that lists the position of certain values in the field argument, based on the regular expression specified in regex-expression. If your regex contains a capture group that can match multiple times within your pattern, only the last capture group is used for multiple matches. Multiple matches apply to the repeated application of the whole pattern. If greater than 1, the resulting fields are multivalued fields. Default: _raw max_match Syntax: max_match= Description: Controls the number of times the regex is matched. Optional arguments field Syntax: field= Description: The field that you want to extract information from. Sed mode supports the following flags: global (g) and Nth occurrence (N), where N is a number that is the character location in the string. sed-expression Syntax: "" Description: When mode=sed, specify whether to replace strings (s) or substitute characters (y) in the matching regular expression. mode Syntax: mode=sed Description: Specify to indicate that you are using a sed (UNIX stream editor) expression.
Regex-expression Syntax: "" Description: The PCRE regular expression that defines the information to match and extract from the specified field.
Rex ( ) | ( mode=sed ) Required arguments Use the rex command for search-time field extraction or string replacement and character substitution. Running the rex command against the _raw field might have a performance impact. If a field is not specified, the regular expression or sed expression is applied to the _raw field. Read about using sed to anonymize data in the Getting Data In Manual. This sed-syntax is also used to mask, or anonymize, sensitive data at index-time. When mode=sed, the given sed expression used to replace or substitute characters is applied to the value of the chosen field. The rex command matches the value of the specified field against the unanchored regular expression and extracts the named groups into fields of the corresponding names. Use this command to either extract fields using regular expression named groups, or replace or substitute characters in a field using sed expressions.
0 kommentar(er)
