First you will need to install some prerequisites and build the directory structure.
So here goes:
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# install lsb-release apt-get install lsb-release # install figlet to enable ASCII art apt-get install figlet # install update-motd software apt-get install update-motd # delete default directory rm -r /etc/update-motd.d/ # create new directory mkdir /etc/update-motd.d/ # create dynamic files touch 00-header ; touch 10-sysinfo ; touch 90-footer # make files executable chmod +x /etc/update-motd.d/* # remove MOTD file rm /etc/motd.dynamic |
Once the above commands have been executed, we need to populate the created files.
Header (00-header)
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#!/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. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program; if not, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. [ -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 $(hostname) printf "\n" printf "Welcome to %s (%s).\n" "$DISTRIB_DESCRIPTION" "$(uname -r)" printf "\n" |
System Information (10-sysinfo)
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#!/bin/bash # # 10-sysinfo - generate the system information # Copyright (c) 2013 Nick Charlton # # Authors: Nick Charlton <hello@nickcharlton.net> # # 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. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program; if not, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. date=`date` load=`cat /proc/loadavg | awk '{print $1}'` root_usage=`df -h / | awk '/\// {print $(NF-1)}'` memory_usage=`free -m | awk '/Mem:/ { total=$2 } /buffers\/cache/ { used=$3 } END { printf("%3.1f%%", used/total*100)}'` swap_usage=`free -m | awk '/Swap/ { printf("%3.1f%%", $3/$2*100) }'` users=`users | wc -w` time=`uptime | grep -ohe 'up .*' | sed 's/,/\ hours/g' | awk '{ printf $2" "$3 }'` processes=`ps aux | wc -l` ip=`ifconfig $(route | grep default | awk '{ print $8 }') | grep "inet addr" | awk -F: '{print $2}' | awk '{print $1}'` echo "System information as of: $date" echo printf "System Load:\t%s\tIP Address:\t%s\n" $load $ip printf "Memory Usage:\t%s\tSystem Uptime:\t%s\n" $memory_usage "$time" printf "Usage On /:\t%s\tSwap Usage:\t%s\n" $root_usage $swap_usage printf "Local Users:\t%s\tProcesses:\t%s\n" $users $processes echo /usr/lib/update-notifier/update-motd-reboot-required /usr/lib/update-notifier/apt-check --human-readable echo |
Footer (90-footer)
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#!/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. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program; if not, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. [ -f /etc/motd.tail ] && cat /etc/motd.tail || true |
Now re-login and new MOTD should appear.
Enjoy!