If you want send message to every user in your system no need to mentation the user.
You have to follow the below command. Message should be enclosed with double or single quote.
Hello: How would you send message to other unix users logged in into the system now.. what should i verify, before sending them a mail across that displays mesage on the terminal. Any man pages? Thanks, ST2000 (2 Replies)
Operating system sun solaris 5.8
My problem is :
crontab -e
15 16 * * * /bckscripts/oo
vi /bcscripts/oo = wall " stop backup "
the system at the 16:15 all day time doesn't display message " stop backup "
What's the problem ???
i'am root user the follow is the root dir... (2 Replies)
A long time ago, I frequently used a small X11 utility that allows you to manage multiple systems at the same time.
It worked by opening a small window that had a button you used to "Add" X Clients to it. These would be xterms on different systems for example.
You would then type inside that... (5 Replies)
My problem definition is ,I have to send a message from one node in a network and it has to be broadcasted to all other nodes in the network.The program what I have given below will be running in all the nodes in the network.The same program should be capable of sending(broadcasting) and receiving.... (1 Reply)
My problem definition is ,I have to send a message from one node in a network and it has to be broadcasted to all other nodes in the network.The program what I have given below will be running in all the nodes in the network.The same program should be capable of sending(broadcasting) and receiving.... (0 Replies)
Hi All,
Can any1 help me out in broadcasting a message to all users if a condtion is meet.
Like I am trying to get values from a directory for service monitoring.
If a condition is meet it should broadcast the message.
I try to use wall command but i m not sure how its works as its... (1 Reply)
we enabled windows firewall and noticed that one unix sun server (solaris 9 ) are broadcasting on UDP port 14000 continous. We are running Oracle Application on this server, so I'm not sure if there is some service doing this, or any idea how to trace .
Regards (1 Reply)
Greetings,
I want to send broadcast udp from a script.
This works but is not broadcast:
echo -n "this is my message\r\n" | nc -u 192.168.0.12 5100
The broadcast version does not work:
echo -n "this is my message\r\n" | nc -u 192.168.0.255 5100
Suggestions on the right way to do this... (2 Replies)
Discussion started by: anotherstevest
2 Replies
LEARN ABOUT CENTOS
shutdown
SHUTDOWN(8) shutdown SHUTDOWN(8)NAME
shutdown - Halt, power-off or reboot the machine
SYNOPSIS
shutdown [OPTIONS...] [TIME] [WALL...]
DESCRIPTION
shutdown may be used to halt, power-off or reboot the machine.
The first argument may be a time string (which is usually "now"). Optionally, this may be followed by a wall message to be sent to all
logged-in users before going down.
The time string may either be in the format "hh:mm" for hour/minutes specifying the time to execute the shutdown at, specified in 24h clock
format. Alternatively it may be in the syntax "+m" referring to the specified number of minutes m from now. "now" is an alias for "+0",
i.e. for triggering an immediate shutdown. If no time argument is specified, "+1" is implied.
Note that to specify a wall message you must specify a time argument, too.
If the time argument is used, 5 minutes before the system goes down the /run/nologin file is created to ensure that further logins shall
not be allowed.
OPTIONS
The following options are understood:
--help
Prints a short help text and exits.
-H, --halt
Halt the machine.
-P, --poweroff
Power-off the machine (the default).
-r, --reboot
Reboot the machine.
-h
Equivalent to --poweroff, unless --halt is specified.
-k
Do not halt, power-off, reboot, just write wall message.
--no-wall
Do not send wall message before halt, power-off, reboot.
-c
Cancel a pending shutdown. This may be used cancel the effect of an invocation of shutdown with a time argument that is not "+0" or
"now".
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.
SEE ALSO systemd(1), systemctl(1), halt(8), wall(1)systemd 208SHUTDOWN(8)