1 files changed, 51 insertions, 0 deletions
diff --git a/bin/update-motd b/bin/update-motd
new file mode 100755
index 0000000..8fe4c81
--- /dev/null
+++ b/bin/update-motd
@@ -0,0 +1,51 @@
+#!/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
+