auparse_get_timestamp - Linux
Overview
auparse_get_timestamp extracts the timestamp from an audit record file. It is a versatile tool for analyzing and auditing system events, enabling administrators to identify the time of specific actions and events.
Syntax
auparse_get_timestamp [--timestamp-audit] [--timestamp-type=TYPE] [--timestamp-pos=POS] [--timestamp-from=[]] [--timestamp-to=[]]
Options/Flags
- –timestamp-audit: Use the timestamp from the audit record itself (default).
- –timestamp-type=TYPE: Specify the type of timestamp to extract:
- sec: Seconds since the epoch.
- usec: Microseconds since the epoch.
- nsec: Nanoseconds since the epoch.
- relative: Seconds since the start of the audit session.
- none: Do not extract a timestamp.
- –timestamp-pos=POS: Position of the timestamp in the audit record.
- –timestamp-from=[]: Start date for extracting timestamps in the format
YYYY-MM-DD HH:MM:SS
. - –timestamp-to=[]: End date for extracting timestamps in the format
YYYY-MM-DD HH:MM:SS
.
Examples
Extract the timestamp in seconds since the epoch:
auparse_get_timestamp \
--timestamp-type=sec \
--timestamp-pos=91
Extract microsecond timestamps within a time range:
auparse_get_timestamp \
--timestamp-type=usec \
--timestamp-pos=22 \
--timestamp-from="2023-03-01 00:00:00" \
--timestamp-to="2023-03-01 23:59:59"
Common Issues
- Ensure that the audit record file is in the correct format and is accessible.
- Specify the correct timestamp type and position for the specific audit record format.
- Use appropriate date formats when filtering timestamps.
Integration
auparse_get_timestamp can be combined with other audit analysis tools to extract and process timestamps. For example:
auparse -e user_login | \
auparse_get_timestamp --timestamp-audit
This command chain extracts login events and then obtains the timestamps from the audit records.
Related Commands
- ausearch: Search audit records.
- auditctl: Control the audit system.
- aureport: Generate audit reports.