who@(1) | General Commands Manual | who@(1) |
who@ - prints the list of active users on a remote host.
who@ [ host ]
who@ connects to TCP port 11 (Systat) on host and prints any data it receives. It removes CR (\015) and converts unprintable characters to a visible format.
If host is not supplied, who@ connects to the local host.
Some computers respond to port 11 with a list of active users. For example, they may be running
using tcpserver.
tcpserver(1), tcprules(1), tcprulescheck(1), argv0(1), fixcrio(1), recordio(1), rblsmtpd(1), tcpclient(1), date@(1), finger@(1), http@(1), tcpcat(1), mconnect(1), tcp-environ(5)
http://cr.yp.to/ucspi-tcp.html