sudo apt update && sudo apt upgrade -y

sudo apt install -y curl  && curl -sL1 avail.sh > avail.sh && chmod +x avail.sh

sudo tee /etc/systemd/system/availd.service > /dev/null <<EOF
[Unit]
Description=Run avail.sh script
[Service]
Type=simple
Restart=always
RestartSec=3
ExecStart=/root/avail.sh
[Install]
WantedBy=multi-user.target
EOF

sudo systemctl daemon-reload
sudo systemctl enable availd
sudo systemctl restart availd && sudo journalctl -u availd -f -o cat

Не звертаємо увагу на наступну помилку, чекаємо повторного конекту:

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