php man page for sendmsg

SENDMSG(1)						      General Commands Manual							SENDMSG(1)

NAME
       sendmsg - send a message via Internet

SYNOPSIS
       sendmsg [ -46vVfrmMl ] [ -u 'from' ] [ -s 'message' ] recipient

DESCRIPTION
       sendmsg sends a one line text message to the terminal(s) of the specified recipient.

       On the receiving site there must be a SAFT-server (Simple Asynchronous File Transfer) installed, like the sendfiled and the recipients ter-
       minal must be writeable.

       The recipient address can be specified as:

       user
	   a local user or a sendfile alias (see below), e.g.: framstag

       user@host
	   an user on a remote host, e.g.: framstag@bofh.belwue.de

       saft://host/user
	   like above, but in URL-syntax, e.g.: saft://bofh.belwue.de/framstag

       saft://host:port/user
	   like above, but with alternate SAFT-port, e.g.: saft://bofh.belwue.de:4870/framstag

OPTIONS
       -4, -6  Explicitly force  IPv4 or IPv6 connections.  By default, the program will try to resolve the name given, and choose the appropriate
	       protocol  automatically.  If resolving a host name returns both IPv4  and  IPv6	addresses, sendmsg will try to use the adresses in
	       the order they are returned by the resolver.

       -v      Verbose mode: show SAFT protocol messages.

       -V      Show version information and exit.

       -f      Force sending of messages and ignore tty (re)settings.

       -r      Reply to last received message.

       -m      Receive messages only on this tty. This is the default.

       -M      Allow receiving messages on other ttys.

       -l      Allow sending of multiline messages messages.

       -s 'message'
	       Send directly message.

       -u 'from'
	       Set sender to from instead of $LOGNAME.

       -q      Quiet mode: print no transfer messages.

EXAMPLES
       sendmsg neg@linux.rus.uni-stuttgart.de
       message: how about lunch?

FILES
       /etc/sendfile.deny
	     Users which are not allowed to receive files or messages (set by root).

       /var/spool/sendfile/$LOGNAME/config/restrictions
	     List of addresses from where you don't want messages or files. The format is:

		user@host [mfb]

	     m stands for messages, f for files and b for both. Wildcards * and ? are allowed. Examples:

		gates@microsoft.com b
		*aol.com m

       /var/spool/sendfile/$LOGNAME/config/aliases
	     The sendfile alias file. Format:

		alias address

	     Example:

		chief grmblfz@bigvax.somewhere.net

SEE ALSO
       sendfile(1).

AUTHOR
       Ulli Horlacher  -  framstag@rus.uni-stuttgart.de

3rd Berkeley Distribution														SENDMSG(1)