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Accepted
takeshin
Asked: 2010-09-22 05:10:41 +0800 CST

Send message to IRC channel from bash

  • 772

I have installed ircd-hybrid on my Ubuntu Server (192.168.1.2, example.com).
We use #teamchannel to communicate inside the team.

The question is: how can I send some short message from example.com to #teamchannel from the bash script? e.g. example.com: Alert! The server is rebooting now

Edit:

I have found a perl script which does exactly what I needed.

ubuntu irc bash automation

5 Answers

  1. IRC is a simple text and line oriented protocol, so it can be done with the basic linux tools. So, without installing ii:

    echo -e 'USER bot guest tolmoon tolsun\nNICK bot\nJOIN #channel\nPRIVMSG #channel :Ahoj lidi!\nQUIT\n' \
| nc irc.freenode.net 6667

    In this command, nc does the network connection, and you send a login info, nick, join a channel named "#channel" amd send a message "Ahoj lidi!" to that channel. And quit the server.

    • 12
  2. Best Answer

    use console irc client

    apt-get install ii
ii -i /tmp -s 192.168.1.2
echo "/PRIVMSG #teamchannel example.com: Alert! The server is rebooting now" > /tmp/irc/in
    • 9

  3. One solution would be to use expect to script communication with the IRC server using a telnet client.

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  4. #!/bin/bash
exec 3>/dev/tcp/example.com/6667
echo "NICK nickname1234" >&3
echo "USER nickname1234 8 * : nickname1234" >&3
echo "JOIN #teamchannel" >&3
echo "PRIVMSG #teamchannel Alert!" >&3
echo "QUIT" >&3
cat <&3
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  5. If you need to supply a password and use ssl you can do something like this.

    #!/bin/bash -e

USER=$1
MYPASSWORD=$2
IRC_SERVER=$3
IRC_PORT=$4
CHANNEL=$5
MSG=$6

(
echo NICK $USER
echo USER $USER 8 * : $USER
sleep 1
echo PASS $USER:$MYPASSWORD
echo "JOIN $CHANNEL"
echo "PRIVMSG $CHANNEL" $MSG
echo QUIT
) | ncat --ssl $IRC_SERVER $IRC_PORT

    The script should be run like this:

    ./post_to_irc.sh your_user your_pass irc_server 6667 "#target-channel" "Your message"

    This is similar to an earlier example using nc but I found I had to use ncat to get it working with our IRC server which has been set up with SSL.

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