this is for sending linux terminal messages to logged on members using two commands

by jamied_uk 25th March 2011, 22:22

1st
you will need notify installed on both machines and also ssh server access on the recipient side, if you have ssh access you can install notify remotely which is good!

if you need open ssh-srver

community.linuxmint.com/software/view/openssh-server

man.openbsd.org/ssh_config

Enable port 22 in you're firewall!

Code:: sudo apt install -y notify-osd libnotify-bin

Code:

Code:: #!/bin/bash # (c) J~Net 2017 # # chmod +x *.sh # # Non Kali Install # sudo apt install -y notify-osd libnotify-bin # apt install -y notify-osd libnotify-bin clear echo "Hi & Welcome To J~Net Messenger (c) 2017 ~ To Quit ctrl z" echo "Input Remote Username (ssh)" read user echo "Input IP Or Hostname" read ip echo "Input You're Name" read from echo "Input Message" read msg echo "Message Sent, App Will Now Exit, Thanks For Using J~Net Messenger." ssh $user@$ip 'export DISPLAY=:0; notify-send "From '$from'" "'$msg'"' # on remote pc u may need to install # sudo apt install -y notify-osd libnotify-bin

Script sent from Kali Linux 2.0 2017.1 to Linux Mint 18 (Both 64 bit)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Other Methods:

linux.byexamples.com/archives/233/write-a-message-to-login-users-through-terminal/

inside terminal type

Code:: who

and this will display all logged on users

and now type

Code:: wall

this will send message to members example

wall

press enter

type messgae

press enter

ctrl d when finished

by jamied_uk 6th May 2017, 14:56

More info @
computerhope.com/unix/wall.htm

by jamied_uk 6th May 2017, 14:57

Code:: wall [-n] [-t TIMEOUT] [file]

Code:: sudo wall message.txt

by jamied_uk 6th May 2017, 14:59

Also you can use talk

Code:: talk user@hostname

by jamied_uk 6th May 2017, 14:59

talk syntax

Code:: talk person [ttyname]

Options

person	If you want to talk to someone on your machine, then person is just the person's login name. If you want to talk to a user on another host, then person is of the form 'user@host'.
ttyname	If you want to talk to a user who is logged in more than once, the ttyname argument may be used to indicate the appropriate terminal name, where ttyname is of the form 'ttyXX' or 'pts/X'.

talk examples

Code:: talk hope

More info @
computerhope.com/unix/talk.htm

by jamied_uk 6th May 2017, 15:02

Now lets look at Write

write examples

Code:: write hope

Write a message to the user hope. After entering this command, you will be placed on a blank line, where everything you type will be sent to the other user (line by line). Typing the interrupt character (Ctrl-C, by default) will return you to the command prompt and end the write session.

Code:: write hope tty7

user	The user to write to.
tty	The specific terminal to write to, if the user is logged in to more than one session.

More info @
computerhope.com/unix/write.htm

by jamied_uk 6th May 2017, 15:04

Now for Notify

Code:: sudo apt install -y notify-osd libnotify-bin notify-send Test "Hello World"

send message to screen of another system:

Code:: ssh <user name>@<ip address>

and then when you're logged in, type:

Code:: export DISPLAY=:0

Code:: notify-send "Title of message" "message text"

Code:: notify-send --help

Some examples:

1. Basic message with an icon in front of the Title showing 5000 milliseconds
Code:

Code:: notify-send "Message Title" "The message body is shown here" -i /usr/share/pixmaps/idle.xpm -t 5000

2. Show contents of a file:
Code:

Code:: notify-send test "`tail /var/log/syslog`"

3. Follow log file:
Code:

Code:: tail -n0 -f /var/log/messages | while read line; do notify-send "System Message" "$line"; done

4. Format message with HTML:
Code:

Code:: notify-send Test "Hello World"

by jamied_uk 6th May 2017, 15:39

Using Netcat (aka nc)

On PC 1, type:

Code:: nc -l 55555

On PC 2, type:

Code:: nc $IP 55555

, where

Code:: $IP

equals the local IP address of PC 1 [e.x.

Code:: 192.168.2.50

]

by jamied_uk 6th May 2017, 15:41

Ytalk

Code:: apt install -y ytalk

Code:: ytalk [-x] [-s] [-Y] [-i] [-h hostname_or_ip] username...

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this is for sending linux terminal messages to logged on members using two commands