How to broadcast a message to all user's.
 

Hello!

I would like to broadcast a messsage to all user's on any terminal's.
I've looked into 'talk' and 'write', I was looking for something similar the way shutdown work's: 'shutdown -r now "The system is going for a reboot"'

Any advise on a way to accomplish this goal of mine?

Thank you, Tarts.

#> echo put your message here >> file.txt
#> wall file.txt

I dont know if theres any other options.. man wall.

Thank's alot!

Allow me to show you the result's:

Next learn 'crond' and have it run on specified interval's!

Thank's!

I thought you can straight away wall on the command line...

ie: wall Hey you people!!!

Mine did
 

It worked on mine in Mandrake 9.1.

[root@smoker dale]# wall "hey you people"
[root@smoker dale]#
Broadcast message from root (pts/1) (Fri Oct 3 02:43:04 2003):

hey you people

[root@smoker dale]#


he he he he he he. I learned something new. :D

Thanks.

:D :D :D :D :D

My experiences:

micxz@mars:~> wall message.txt
wall: will not read message.txt - use stdin.
micxz@mars:~> cat message.txt | wall

Broadcast Message from micxz@mars
(/dev/pts/4) at 1:21 ...

Hello'
This is a cool thing you can do;

Works nice;
also:

micxz@mars:~> wall
testing typing now cntrl-D twice fast;

Broadcast Message from micxz@mars
(/dev/pts/4) at 1:21 ...
testing typing now cntrl-D twice fast;

Works also;

freeBSD wont let me wants a
<group> <filename>

This does not work on my system, wall need's a file, by default it supposed to read from 'stdin', but this does not work, i'm sure there's a way to redirect or something....

{edit}

#wall
Hello!

then type ctrl d
{edit2}

#echo "Hello users, the date is `date`" | wall

On my Ubuntu 10.04 I use something like:

echo Please log off now!!! | wall

Wow! You dug deep to find this old thread. It's only 7 years old. :D

:) :)

1) Why are you resurrecting a 7 year old thread?

2) You didn't even get the command right! You'd end up getting a "Please log off now" command not found, doing that!

Not exactly an auspicious first post.

I had forgotten I even had a membership here
dang

zombie thread

First, stop the apostrophe abuse...

Gee wiz dude! I am glad that fellow actually posted that. With quotation marks it almost works; but I haven't seen anyone post a good answer yet. Is this an unauspicious first post too? And, the essential CLI should still apply even 7 years later, no?

This works here:

It even does a pop up in KDE4. One of those "notify" thingys. lol

:D :D

The wall command in Slackware (at least in Slackware Current) is from util-linux-ng 2.18 and doesn't appear to support the -n option. Perhaps the gentoo one is from a different origin or version.


There's plenty of ways of doing this though,

msmi10 has since modified his code example above to something that should work (though it'd be better with quotes) so I'm not sure why there was a need to resurrect this thread once again. Resurrecting long dead threads wastes everyone's time and is annoying when you don't spot it is a zombie. Reading back I was clearly overly harsh with him, I guess I wasn't in a very tolerant mood that day (Everyone has bad days).

In the hopes of finally laying this one to rest, I'll just finish with another couple of possibilities.
In recent bash versions, you can use the syntax
More portably, you can use a here-document, which also has the advantage of allowing you to do a few other fancy things like pre-formatting, or include variables
and command substitutions
or, as has already been mentioned you can just take the input from the output of another command in the more usual pipe syntax, as per the now corrected example msmi10 posted.

Here, it works even without the -n option. On Gentoo, that command is part of sysvinit-2.88-r1. So, there is no telling what sort of differences there is between Gentoo and Slackware.

:D :D

:) There are one or two commands that seem to be differ between distros: 'rename' is another one that I find differs.
Having said that, basic 'wall' usage is that simple I'm surprised anyone could manage to have a problem using it.

Anyway, old thread and really not worth labouring over. Thanks for posting dalek.

Yea but it did remind me to update my sig with the new and improved rig.

:D :D

this works for me in slack 13 (i think i asked this question in another thread...)

On reflection, I think all the confusion over this is a BSD v SYSV issue.

Slackware appears to use the bsd syntax
wall [file]

Other distros (Gentoo being one from what dalek said above) use a SYSV syntax
wall [message text]

However, both versions will accept input on stdin.

ah-ha.... i did a "man wall" and the manpage says:
so yes, Slack uses the BSD wall, but the manpage really doesn't go into the details of the stdin input usage.

gee... from looking at the manpage for talk, it looks like talk could be used as a basic IM on a local network... i'll have to play with it a bit

Mine says it was written by Miquel van Smoorenburg and at the top says "Linux User's Manual". It appears that Gentoo uses something entirely different. Sort of wonder why they didn't name it something different too. Maybe gwall or something if it is only used on Gentoo.

:D :D

Reading this thread i saw that the command first posted used ! so using " " won't work.
So use ' ' instead.
or
Or to play some more.
But i almost feel ashamed answering in this old thread.

Thank You.. Finally code that actually works!

Landis.

wall absolutly doesn't broadcast anything on Ubuntu 12.04, when using by root or by user.
Works only via ssh and doesn't support cyrillic.

maybe that's why this topic is in the Slackware forum, not the Ubuntu one.

if you have questions/reports about the usage of wall on Ubuntu, open a topic on the dedicated forum, don't revive an old thread on random ones (if you had read all this one you could have seen this -the awkward reviving- already happened in this same thread).

Drive a stake through this thread's heart.

I'm glad this thread still exists.
 

I joined just to say I use your site all the time and finding threads even as old as 2003 and having users still replying to them in 2015 and beyond shouldn't upset people because they're 'old'. This information is still useful, even today. Isn't that the point of a forum like this? :p

ANYWAY, I found the information on wall <<< "text here" useful, so thanks! :D

Hi Tarts

I hope you're doing well. Apologies for delay in replying.

Did you try using the below command to find out the right syntax?

@deadthread123: so you are bored enough to answer someone whose last post dates back nearly 14 years ago???

Why not? He still might be on the look out for the right answer.

He got the right answer answer in post #2 and confirmed that it worked on post #3, more that 14 years ago.

Next time, please read previous answers before posting yours.

Welcome to this forum anyway.