Dynamic SSH Banner (Tutorial by http://oitibs.com/debian-wheezy-dynamic-motd/)

00-header

#!/bin/sh
#
#    00-header - create the header of the MOTD
#    Copyright (c) 2013 Nick Charlton
#    Copyright (c) 2009-2010 Canonical Ltd.
#
#    Authors: Nick Charlton <hello@nickcharlton.net>
#             Dustin Kirkland <kirkland@canonical.com>
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.

[ -r /etc/lsb-release ] && . /etc/lsb-release

if [ -z "$DISTRIB_DESCRIPTION" ] && [ -x /usr/bin/lsb_release ]; then
    # Fall back to using the very slow lsb_release utility
    DISTRIB_DESCRIPTION=$(lsb_release -s -d)
fi

#figlet $(hostname -f)
figlet "Murukusunu /"
#printf "\n"
#printf "Welcome to %s (%s).\n" "$DISTRIB_DESCRIPTION" "$(uname -r)"
#printf "\n"

10-sysinfo

#!/bin/sh
#
#    10-sysinfo - generate the system information
#    Copyright (c) 2013 Nick Charlton
#    Copyright (c) 2009-2010 Canonical Ltd.
#
#    Authors: Nick Charlton <hello@nickcharlton.net>
#             Dustin Kirkland <kirkland@canonical.com>
#             http://oitibs.com/debian-wheezy-dynamic-motd/
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.

# time of day
HOUR=$(date +"%H")
if [ $HOUR -lt 12  -a $HOUR -ge 0 ]; then
	TIME="morning"
elif [ $HOUR -lt 17 -a $HOUR -ge 12 ]; then
	TIME="afternoon"
else 
    TIME="evening"
fi

# System uptime
uptime=`cat /proc/uptime | cut -f1 -d.`
upDays=$((uptime/60/60/24))
upHours=$((uptime/60/60%24))
upMins=$((uptime/60%60))

MEMORY1=`free -t -m | grep "buffers/cache" | awk '{print $3" MB";}'`
MEMORY2=`free -t -m | grep "Mem" | awk '{print $2" MB";}'`

# System + Memory
SYS_LOADS=`cat /proc/loadavg | awk '{print $1}'`
SWAP_USED=`free -m | tail -n 1 | awk '{print $3}'`
NUM_PROCS=`ps aux | wc -l`
IPADDRESS=`ifconfig | sed -n 's/.*inet addr:\([0-9.]\+\)\s.*/\1/p' | grep -v '127.0'`

# Cek Update
CEK_UPDATE1=`/usr/lib/update-notifier/apt-check --human-readable | grep "can be updated"`
CEK_UPDATE2=`/usr/lib/update-notifier/apt-check --human-readable | grep "security updates"`

echo "
===================================================================
 - Good $TIME `whoami`. Wilujeng sumping !!
===================================================================
 - Hostname............: `hostname -f`
 - IP Address..........: $IPADDRESS
 - Release.............: `uname -a | awk '{print $1" "$3" "$12}'`
 - Users...............: Currently `users | wc -w` user(s) logged on
 - Server Time.........: `date`
===================================================================
 - System load.........: $SYS_LOADS / $NUM_PROCS processes running
 - Memory used.........: $MEMORY1 / $MEMORY2
 - Swap in use.........: $SWAP_USED MB
 - System uptime.......: $upDays days $upHours hours $upMins minutes
===================================================================
 - Available updates...: $CEK_UPDATE1
 - Security updates....: $CEK_UPDATE2
===================================================================
"

99-footer

#!/bin/sh
#
#    99-footer - write the admin's footer to the MOTD
#    Copyright (c) 2013 Nick Charlton
#    Copyright (c) 2009-2010 Canonical Ltd.
#
#    Authors: Nick Charlton <hello@nickcharlton.net>
#             Dustin Kirkland <kirkland@canonical.com>
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.

[ -f /etc/motd.tail ] && cat /etc/motd.tail || true