Alert Linux when Boot & Shutdown

README.md

Alert Linux when Boot & Shutdown

Environment

• BOT Telegram
• Linux

Make Telegram Service

You can follow this Step

Start Alert on Boot

• Make an simple Script

nano /usr/bin/boot

#!/bin/bash

ALERT=$(echo -e "\u26A0")
DATE=$(date)
HOSTNAME=$(hostname)

telegram "$ALERT $HOSTNAME ALREADY RUNNING on $DATE $ALERT"

chmod +x /usr/bin/boot

• Make an crontab

crontab -e

@reboot /usr/bin/boot

sudo systemctl enable cron.service

Before Shutdown

• Make Simple Script

nano /usr/bin/beforeshutdown

#!/bin/bash

ALERT=$(echo -e "\u26A0")
DATE=$(date)
HOSTNAME=$(hostname)

telegram "$ALERT $HOSTNAME are Turning to POWEROFF State on $DATE $ALERT"

chmod +x /usr/bin/beforeshutdown

• Make Systemd Service

nano /etc/systemd/system/run-before-shutdown.service

[Unit]
Description=Alert at shutdown
DefaultDependencies=no
Before=shutdown.target

[Service]
Type=oneshot
ExecStart=/usr/bin/beforeshutdown
TimeoutStartSec=0

[Install]
WantedBy=shutdown.target

systemctl daemon-reload
systemctl enable run-before-shutdown.service