The aureport Linux tool allows you to generate summary and columnar reports on the events recorded in log files.
You can see some simple examples with this tool:
[root@desk mythcat]# aureport --tty -ts today
TTY Report
===============================================
# date time event auid term sess comm data
===============================================
<no events of interest were found>
[root@desk mythcat]# aureport --start 12/31/2020 00:00:00 --end 04/05/2021 00:00:01
Summary Report
======================
Range of time in logs: 10/17/2020 22:30:47.765 - 04/04/2021 23:38:30.089
Selected time for report: 12/31/2020 00:00:00 - 04/05/2021 00:00:01
Number of changes in configuration: 76792
Number of changes to accounts, groups, or roles: 11
Number of logins: 10
Number of failed logins: 16
Number of authentications: 460
Number of failed authentications: 59
Number of users: 3
Number of terminals: 16
Number of host names: 3
Number of executables: 56
Number of commands: 76
Number of files: 0
Number of AVC's: 0
Number of MAC events: 0
Number of failed syscalls: 0
Number of anomaly events: 375
Number of responses to anomaly events: 0
Number of crypto events: 35
Number of integrity events: 0
Number of virt events: 0
Number of keys: 0
Number of process IDs: 6104
Number of events: 112473
[root@desk mythcat]# aureport -x --summary
Executable Summary Report
=================================
total file
=================================
128351 (null)
42192 /usr/lib/systemd/systemd
3348 /usr/bin/sudo
1733 /usr/bin/su
971 /snap/anbox/186/usr/bin/anbox
754 /usr/libexec/lxdm-session
702 /usr/lib/systemd/systemd-update-utmp
311 /opt/google/chrome/chrome
119 /usr/sbin/sshd
113 /usr/bin/login
104 /opt/teamviewer/tv_bin/teamviewerd
88 /usr/sbin/runuser
84 /usr/sbin/unix_chkpwd
69 /usr/sbin/auditd
55 /usr/sbin/atd
55 /usr/sbin/auditctl
37 /usr/lib/polkit-1/polkit-agent-helper-1
...
1 /home/mythcat/blender-2.83.12-linux64/blender
...
[root@desk mythcat]# aureport -x | less
Executable Report
====================================
# date time exe term host auid event
====================================
1. 10/17/2020 22:30:47 (null) (none) ? -1 392
2. 10/17/2020 22:30:54 /usr/lib/systemd/systemd ? ? -1 395
3. 10/17/2020 22:31:14 /usr/lib/systemd/systemd ? ? -1 401
4. 10/17/2020 22:31:17 /usr/lib/systemd/systemd ? ? -1 402
5. 10/17/2020 22:31:20 /usr/lib/systemd/systemd ? ? -1 403
6. 10/17/2020 22:31:33 /usr/lib/systemd/systemd ? ? -1 406
7. 10/17/2020 22:31:37 /usr/lib/systemd/systemd ? ? -1 413
8. 10/17/2020 22:31:57 /usr/lib/systemd/systemd ? ? -1 415
9. 10/17/2020 22:32:45 (null) (none) ? -1 421
...
[root@desk mythcat]# aureport -t
Log Time Range Report
=====================
/var/log/audit/audit.log.4: 10/17/2020 22:30:47.765 - 12/21/2020 15:07:09.820
/var/log/audit/audit.log.3: 12/21/2020 15:07:19.925 - 01/30/2021 12:35:50.328
/var/log/audit/audit.log.2: 01/30/2021 12:37:35.586 - 03/08/2021 08:43:18.974
/var/log/audit/audit.log.1: 03/08/2021 08:43:19.034 - 04/27/2021 22:13:39.212
/var/log/audit/audit.log: 04/27/2021 22:13:39.217 - 05/04/2021 21:30:01.648
[root@desk mythcat]# aureport --login --summary -i
Login Summary Report
============================
total auid
============================
15 unset
10 mythcat
1 unknown(767779) 