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Full Discussion: Reminder script not working...
Homework and Emergencies Homework & Coursework Questions Reminder script not working... Post 302569796 by csharp100 on Tuesday 1st of November 2011 02:59:19 PM
Old 11-01-2011
Quote:
Originally Posted by vbe
Clue:
How are you going to get the $tty ?
Portion corrected
Code:
who | grep $LOGNAME | sed 's,.*\(pts/[0-9]*\).*, \1 ,' |
while read tty
do
  echo $MESSAGE | /dev/$tty
done
 
#
execution:
#
an12:/home/vbe $ who | grep $LOGNAME | sed 's,.*\(pts/[0-9]*\).*, \1 ,'|
> while read tty
> do
>   echo $MESSAGE | /dev/$tty
> done
/usr/bin/ksh[4]: /dev/pts/14: 0403-006 Execute permission denied.
/usr/bin/ksh[4]: /dev/pts/24: 0403-006 Execute permission denied.
/usr/bin/ksh[4]: /dev/pts/27: 0403-006 Execute permission denied.

You carry on now...
I believe I know where you are going. I used the above for loop instead but I think you are pointing out the fact that some users might have there tty's turned off for receiving messages. Is that correct? My time was limited on getting the assignment done. I had thought of that though.
 

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LEARN ABOUT DEBIAN

xtelld

XTELLD(8)						      System Manager's Manual							 XTELLD(8)

NAME

       xtelld - daemon receiving messages from xtell(1) clients

SYNOPSIS

       xtelld [options]

DESCRIPTION

       xtelld is daemon receiving messages from the xtell(1) client and displaying them to apropriate user.

OPTIONS

       --help Short help

       --alone
	      Force server to run standalone

       --inetd
	      Force server to act as service of inetd

       --version
	      Print version information and exit.

       -sX    Lifetime for spawned services (in seconds) ex: -s25  maintain connections for up to 25 seconds

       -mX    Spawn no more than X children services at a time ex: -m15  service no more than 15 requests at once.  Note: ignored if inetd service

       -pX    Use port X, default: 4224

       -n     Do not lookup addresses, use IP numbers instead

USAGE

       Xtell  daemon  can run either from inetd(preferred) or from command line.  If you decide to start it from inetd, add this line to /etc/ser-
       vices :

       xtell	 4224/tcp	     # xtell server

	  and this line to /etc/inetd.conf :

       xtell	 stream    tcp	nowait	  nobody.tty	 /usr/sbin/tcpd /usr/local/sbin/xtelld

       Notice that the entries are separated by tabs, not spaces.  Restart inetd with killall -HUP inetd

       What to do if you are a normal user and want to run xtell daemon:

       You can't run it from inetd, obviously. Just start ./xtelld to use xtell on default port (4224). In this case,  xtell  can  write  messages
       only  to  you.  If  there  is another user on that system willing to get messages, either s/he starts xtelld on another port (e.g. ./xtelld
       -p4225), or makes his/her tty writable by you (e.g. chmod a+rw /dev/tty* /dev/pts/*)

AUTHOR

       Radovan Garabik (garabik@fmph.uniba.sk)

SEE ALSO

       xtell(1), write(1), talk(1), talkd(8), tty(1)

																	 XTELLD(8)
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