Whowatch is a ncurses who-like utility that displays information about the users currently logged on to the machine, in real-time. Besides standard information (login name, tty, host, user’s process), the type of the connection (ie. telnet or ssh) is shown. You can toggle display between users’ command or idle time. You can also view processes tree and send INT and KILL signals.
You can download it from the following link: https://packetstormsecurity.com/files/download/10749/whowatch-1.3.tar.gz
Source: https://packetstormsecurity.com/files/10749/whowatch-1.3.tar.gz.html