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Debian 9 "stretch"

Come rendere permanenti le modifiche a /etc/motd

Introduzione

Possiamo fare in modo che al momento del login via SSH o via terminale, Debian Stretch ci mostri alcune utili informazioni di sistema.
Per fare questo occorre installare alcuni pacchetti e modificare alcuni file.

Installazione

# install lsb-release 
apt-get install lsb-release

# install figlet to enable ASCII art
apt-get install figlet

# create directory
mkdir /etc/update-motd.d/

# change to new directory
cd /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

Configurazione

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.
#
#    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"