Yawho (Yet Another Who) is a who-like program.
It was written back in the day when some people were still using telnet for remote sessions.
Program shows standard informations about users currently on the machine (current process, username, tty, "from") but has two additional columns not seen in other 'w' programs:
DAEMON - shows connection type ie. ssh, telnet SHP - pid of the login shell (helpful if you are an ugly administrator that whishes to kill someone's sesssion ;-)
Compile: ./configure && make
Usage: yawho [-l] [username ...]
-l long display - don't cut processes names