Its very easy to write shell script based bots with ii. As a short example look at this:

tail -f \\#<CHANNEL>/out |  
while read foo ; do  
    name=$(echo $foo | awk '{print $2}' | sed 's,<\\(.*\\)>,\\1,')  
    if awk 'BEGIN{srand(); exit rand()<.1)}' ; then  
        echo "$name: WHAT??" ;  
    fi;  
done

Its just spamming a channel but I guess your imagination is boundless. I also heard about people using it together with nagios to get the notifications into IRC. Remember to strip input for example with tr(1), tr -cd “0-9a-zA-Z” for example would only allow numbers and characters.

If you want to see a live demonstration of a bot written for ii, join #grml on freenode, the grml-tips bot which searches for grml tips and gives a link or error messages is written in 45 lines of /bin/sh. No, I will not publish the code since I really suck in shell programming :)

Stat scripts

If you want to use for example pisg to generate channel stats this will also work if you choose the irssi log format.

Automatic reconnects

If you want some kind of automatic reconnects in ii you can make a something like this in a shell script:

while true; do  
    ii -s irc.oftc.net -n iifoo -f "John Doe"  
    iipid=$!  
    sleep 5  
    echo "/j #ii" > ~/irc/irc.oftc.net/in  
    while [[ -e /proc/$iipid ]]; do  
        sleep 30  
    done  
done

bots for irc it (ii)

nagios

Simple Perl script “nagios_post.pl” as interface between Nagios and ii:

#!/usr/bin/perl -w

my $users = "your_nickname(s)";
my $pipe = "$ENV{HOME}/irc/your_irc_server/#your_channel/in";
my %color = (
   red    => "\0034",
   purple => "\0036",
   yellow => "\0038",
   clear  => "\00315",
   blue   => "\0032\002",
   green  => "\0033",
   normal => "\0031",
   );

open(PIPE, '>', $pipe) or die "Can't write to $pipe: $!";
while (<>) {
      s/Host [a-z0-9_.]+ is down/$color{red}$&$color{normal}/i;
      s/PROBLEM.*?CRITICAL/$color{red}$&$color{normal}/i;

      s/PROBLEM.*?WARNING/$color{yellow}$&$color{normal}/i;
      s/Host [a-z0-9_.]+ is up/$color{green}$&$color{normal}/i;

      s/RECOVERY.*?OK/$color{green}$&$color{normal}/i;

      print PIPE "$users: $_";
}
close(PIPE);

The appropriate Nagios configuration looks like this:

# 'notify-by-irc' command definition
define command{
        command_name    notify-by-irc
        command_line    /usr/bin/printf "%b" "$TIME$ $NOTIFICATIONTYPE$ $HOSTNAME$/$SERVICEDESC$ $SERVICESTATE$ $SERVICEOUTPUT$\n" | /home/nagios/bin/nagios_post.pl 
       }

# 'host-notify-by-irc' command-notification
define command{
        command_name    host-notify-by-irc
        command_line    /usr/bin/printf "%b" "$TIME$ Host $HOSTALIAS$ is $HOSTSTATE$ -- $HOSTOUTPUT$\n" | /home/nagios/bin/nagios_post.pl
       }

Start ii appropriately and add notify-by-irc and host-notify-by-irc to the appropriate “service_notification_commands” and “host_notification_commands” — and you have your own Nagios IRC bot.

rsstail

Just piping the output of rsstail into the fifo “in” should work. More detailed examples are welcome.