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Top Forums UNIX for Beginners Questions & Answers Need help to use regex to do search and replace. Don't know how to and can't figure out how :( Post 303026960 by RudiC on Wednesday 5th of December 2018 04:38:12 PM
Old 12-05-2018
Quote:
Originally Posted by newbie_01
Hi RudiC

Doesn't work on Solaris but works perfectly on Linux.
Where and how does it fail? Please give as detailed and complete an error message as possible.

Quote:
01 - Why are you escaping the # in the beginning?
man sed:
Quote:
Addresses.
.
.
\cregexpc
Match lines matching the regular expression regexp. The c may be any character.
I use the # here because the usual / is part of the pattern.


Quote:
02 - The p before the (_ is because I want to match a single p? Is that correct?
Yes.


Quote:
03 - The #s//\1t\2/ is the one that I don't understand for the most part. Is it doing another search?
The # is the final address delimiter. An empty regex (s//) repeats the last one encountered, here: the address regex.
 

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AUSEARCH_ADD_ITEM(3)						  Linux Audit API					      AUSEARCH_ADD_ITEM(3)

NAME
ausearch_add_item - build up search rule SYNOPSIS
#include <auparse.h> int ausearch_add_item(auparse_state_t *au, const char *field, const char *op, const char *value, ausearch_rule_t how); DESCRIPTION
ausearch_add_item adds one search condition to the current audit search expression. The search conditions can then be used to scan logs, files, or buffers for something of interest. The field value is the field name that the value will be checked for. The op variable describes what kind of check is to be done. Legal op values are: exists just check that a field name exists = locate the field name and check that the value associated with it is equal to the value given in this rule. != locate the field name and check that the value associated with it is NOT equal to the value given in this rule. The value parameter is compared to the uninterpreted field value. The how value determines how this search condition will affect the existing search expression if one is already defined. The possible val- ues are: AUSEARCH_RULE_CLEAR Clear the current search expression, if any, and use only this search condition. AUSEARCH_RULE_OR If a search expression E is already configured, replace it by (E || this_search_condition). AUSEARCH_RULE_AND If a search expression E is already configured, replace it by (E && this_search_condition). RETURN VALUE
Returns -1 if an error occurs; otherwise, 0 for success. SEE ALSO
ausearch_add_expression(3), ausearch_add_interpreted_item(3), ausearch_add_timestamp_item(3), ausearch_add_regex(3), ausearch_set_stop(3), ausearch_clear(3), ausearch_next_event(3), ausearch-expression(5). AUTHOR
Steve Grubb Red Hat Nov 2007 AUSEARCH_ADD_ITEM(3)
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