finger@ 1 user commands djbwares finger@ gets user information from a remote host. finger@ hostuser finger@ uses tcpclient1 to connect to TCP port 79 on host, sends user (followed by a newline), and prints any data that it receives. It uses addcr1 to ensure that user is terminated by CR+LF. It uses delcr1 and cat1 to remove CR (\015) and convert unprintable characters to a visible format. If host is not supplied, finger@ connects to the local host. If user is not supplied, finger@ sends a zero-length string (followed by a newline). TCP port 79 is the well-known port for the Finger service. Some computers respond to connections on this port with information about user. If user is zero-length, some computers respond with information about all of the users who are logged in. finger@ was originally part of Daniel J. Bernstein's ucspi-tcp toolset in 1999. Original code and documentation by Daniel J. Bernstein. Documentation modernizations by Jonathan de Boyne Pollard.