is there a command to send all terminals a message. i tired wall, but it only sends the message to who ever is logged in at a terminal. i need a command to send to every terminal no matter if someone is logged in or not.
I don't know if you could send wall messages to 'dead' terminals. But I know you could use 'mail' to send messages to all users, either logged on or not.
'mail' just sends an email to everyone, right? maybe i explaned it a little weird:
what i am trying to do is send every dummy terminal a message when i want them to log off the system. when a user is logged in, they recieve the message, but if no one is logged in at that terminal ,nothing is displayed on the screen.
(I guessed as much that that is what you want). You may not worry about terminals that are not logged on since you want them logged off.
However, if you could write a small 'cron' message that would be executing the time you want users logged off, it may solve a bit, but a terminal has to logg on to receive the message allthesame.
thats what i was afraid of. see what the whole point of this is, is that i wanted to write a message to users to stay logged off the system until a predetermined time. so, lets say i am rebuilding a index for a database and i want everyone to stay off the system until 10:00, the message would be on the screen. but, when i use 'wall' it does not show up, just the login screen.
You could always write a script to echo to the tty devices. The device names depend on the OS you're running, but they should be something like /dev/ttya, /dev/ttyb, etc.
i.e.
echo "Please logoff the system until 5pm." > /dev/ttya
I would do it the way wizard suggests...
First, I would make a list of all terminal devices, then read from that list and echo a message:
Code:
# cat term-list
/dev/tty2
/dev/tty3
/dev/tty4
#
# cat send_message.sh
#!/usr/bin/sh
for each in `cat term-list`
do
echo "\n\n\n\n\tPlease log out until 10:00 PM" >>$each
echo "I am currently rebuilding the database" >>$each
done
#
You might want to leave your terminal out of the list, do you're screen doesn't get interrupted, and maybe also send out a wall message to everyone logged in first, so their terminal doesn't get screwed up right before they have to log out.
Well, it's not working out.... !
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hi friends
i am using fedora linux operating system on the server and two clients(with windows os) are connected to it(server ).but here wall and write cmds are not working to send messages from one system to another system .
pls help me (4 Replies)
Hi all,
i'm trying to generate a "pop up window" incorporating either the write or wall command or both.
Is such a thing possible ?
thanks
simon2000 (2 Replies)
let's say in my office i have 20 networked sun boxes named host1 through host20. i am currently logged in as root at some random machine, which we will say host13 for this scenario's sake. now, is there any way i can send a text message of some sort over the whole network to all logged in... (1 Reply)
01-31-2002
