On Tue, 30 Oct 2007 09:19:28 +0700
Donny Christiaan <[EMAIL PROTECTED]> wrote:
> Or you can just use "wall" from linux shell.
>
I wish I would have known about "wall". Sorry to come a but late to the
discussion, but I have not checked on my list email in a long time.
Anyway, I had written up a script as well. Figured it might help you
(or someone else) out.
- can be configured to gmessage, kmessage, xmessage (and probably
others) to display the message on the thin-clients.
- Assumes that you do NOT want the message to display on the server
(in my small environment, I have 4 clients and 1 server, so the
server is also MY desktop)
- can send message to just one user (base on login username) or all
users
- sends message based on login, so it does not matter what desktop
environment the users are using.
--
http://gentgeen.homelinux.org
#############################################################
Associate yourself with men of good quality if you esteem
your own reputation; for 'tis better to be alone then in bad
company. - George Washington, Rules of Civility
#!/bin/bash
# ======================================================================
# assign better names to the arguements provided on the command line
# ======================================================================
# $* means every arguement
# The 'shift' is needed to make sure to grab everything
# AFTER the first arguement
username=$1
shift
message=$*
# I like gmessage, but you can use kmessage or xmessage. Just replace
# the next variable with the message program you want to use along with
# any arguments you want to send with it (except for the -display arguement
# that is covered in the script)
msgprg="gmessage -buttons \"GTK_STOCK_CLOSE\" -center -timeout 60 -wrap -geometry 400x200 -title \"Message from the Administrator\""
# ======================================================================
# A number of functions just too help me keep things together, and make
# trouble shooting easier.
# ======================================================================
# Function to respond to usage errors at the command line
function usage ()
{
echo " "
echo " THIS SCRIPT MUST BE RUN AS ROOT!!!"
echo " THIS SCRIPT MUST BE RUN AS ROOT!!!"
echo " THIS SCRIPT MUST BE RUN AS ROOT!!!"
echo " "
echo " usage: $0 [USERNAME] [MESSAGE]"
echo " where USERNAME can be 1 specific user "
echo " or if USERNAME=all then message goes to all users logged in"
echo " "
echo " everything after USERNAME will become part of the message"
}
# Function to make sure the user is actually logged onto the server
function user_check ()
{
check=$(who | awk '{print $1}' | grep ^"$username" | uniq )
if [ -f $check ]; then
echo " Sorry, $username is not currently logged on"
exit
fi
}
# Function to send message to all users
function msg_all ()
{
users=$(who | awk '{print $1}' | sort | uniq )
for user in $users
do
display=$(who | grep ^"$user" | awk '{print $2}' | grep -e ":" )
# if the display comes back as just ":0" that means the user is logged
# onto the server (at least on my machine)
if [ "$display" = :0 ]; then
display="`hostname -f`:0.0"
fi
#Use this line for access_control
su 2>/dev/null 1>&2 -c "$msgprg -display $display $message" - $user &
# Use this line if "disable_access_control=y" is in the lts.conf file
# $msgprg -display $display $message 2>/dev/null &
done
}
# Function to send message to one user
function msg_one ()
{
# need to get the display just for that one user
display=$(who | grep ^"$username" | awk '{print $2}' | grep -e ":" )
# if the display comes back as just ":0" that means the user is logged
# onto the server (at least on my machine)
if [ "$display" = :0 ]; then
display="`hostname -f`:0.0"
fi
su 2>/dev/null 1>&2 -c "$msgprg -display $display $message" - $username &
}
# ======================================================================
# Stuff just to check that everything is OK
# ======================================================================
# Make sure that there were at least 2 arguments proved
if [ $# -lt 2 ]; then
usage
exit
fi
# Make sure that the user is really logged in as root
if [ $USER != "root" ]; then
usage
exit
fi
# ======================================================================
# Now that I have all the checking done, now it is time for the work
# ======================================================================
if [ "$username" = all ]; then
msg_all
exit
else
user_check
msg_one
exit
fi
exit
#end script
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