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#!/usr/bin/env bash
set -euo pipefail
# get the hostname
if [ -s /etc/motd.name ]; then
cat /etc/motd.name > /tmp/motd
elif [ -x /usr/bin/banner ]; then
cat /etc/hostname | banner -w 80 > /tmp/motd
else
cat /etc/hostname > /tmp/motd
fi
echo >> /tmp/motd
# get additional info
if [ -s /etc/motd.info ]; then
cat /etc/motd.info >> /tmp/motd
echo >> /tmp/motd
fi
# get currently running kernel version
uname -a >> /tmp/motd
echo >> /tmp/motd
# update package cache
pacman -Sy 2>&1 > /dev/null
pacman -Qu > /tmp/updates
# show updatable packages
if [ -s /tmp/updates ]; then
echo "Package updates available:" >> /tmp/motd
cat /tmp/updates >> /tmp/motd
echo >> /tmp/motd
fi
if [ -x /usr/bin/arch-audit ]; then
arch-audit -uf "%n|%c" >> /tmp/cves
if [ -s /tmp/cves ]; then
echo "Security updates needed:" >> /tmp/motd
cat /tmp/cves >> /tmp/motd
fi
else
echo "Install arch-audit for information on CVEs." >> /tmp/motd
fi
# move all to /etc/motd
if [ -x /usr/bin/lolcat ]; then
lolcat /tmp/motd > /etc/motd
else
cat /tmp/motd > /etc/motd
fi
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