I would loke to read the WTMP file. This is a binary file in the /var/logs directory. Is there any utility which will convert this binary file to ASCII format?
The last(1) command reads wtmp. If you want super-details, you can get the source code for last(1) and examine the format details. If you want to read wtmp in a standard way, just use <B>last</B>.
Also, you can do a man on both <B>last</B> and <B>wmtp</B> to get high level, general details.