05-10-2006
Quote:
Originally Posted by tej.buch
hi...people seem to be gung ho about vi...what is so special about it? kindly inform me about its features that make it so special...
Well, if you're the kind of user that finds himself doing the same edit to 99 lines and wondering if he should write a perl script to do this for you, vi may be the editor for you... Instead of the limited search/search-replace functionality many editors have, vi supports full-blown regular expression search and search-replace. It's got many little features that let you do more work with less keystrokes but regexes is the "wow" one.
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LEARN ABOUT CENTOS
ausearch_add_timestamp_item
AUSEARCH_ADD_TIMESTAMP_ITEM(3) Linux Audit API AUSEARCH_ADD_TIMESTAMP_ITEM(3)
NAME
ausearch_add_timestamp_item - build up search rule
SYNOPSIS
#include <auparse.h>
int ausearch_add_timestamp_item(auparse_state_t *au, const char *op, time_t sec, unsigned milli, ausearch_rule_t how)
DESCRIPTION
ausearch_add_timestamp_item adds an event time 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 op parameter specifies the desired comparison. Legal op values are <, <=, >=, >
and =. The left operand of the comparison operator is the timestamp of the examined event, the right operand is specified by the sec and
milli parameters.
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.
APPLICATION USAGE
Use ausearch_add_item(3) and ausearch_add_interpreted_item(3) to add conditions that check audit record fields. Use ausearch_add_expres-
sion(3) to add complex search expressions using a single function call.
SEE ALSO
ausearch_add_expression(3), ausearch_add_item(3), ausearch_add_interpreted_item(3), ausearch_add_regex(3), ausearch_set_stop(3), ause-
arch_clear(3), ausearch_next_event(3), ausearch-expression(5).
AUTHOR
Miloslav Trmac
Red Hat Nov 2007 AUSEARCH_ADD_TIMESTAMP_ITEM(3)