Update and restart system

• sudo vim /usr/local/bin/update_and_reboot.sh

#!/bin/sh
updates=$(pacman -Qu | awk '{print $1}')
if [ -z "$updates" ]; then
    echo "No available updates, reboot cancelled"
    exit 0
fi

sudo pacman -Syu --noconfirm
if [ $? -ne 0 ]; then
    echo "Failed to update the system."
    exit 1
fi

echo "Update sucess, rebotting..."
systemctl reboot

• sudo chmod +x /usr/local/bin/update_and_reboot.sh
• sudo vim /etc/systemd/system/update_and_reboot.service

[Unit]
Description=Update Arch Linux and Reboot

[Service]
Type=oneshot
ExecStart=/usr/local/bin/update_and_reboot.sh

• sudo vim /etc/systemd/system/update_and_reboot.timer

[Unit]
Description=Timer for weekly Arch Linux update and reboot

[Timer]
OnCalendar=Tue 20:00:00
Persistent=true

[Install]
WantedBy=timers.target

• sudo systemctl enable --now update_and_reboot.timer