Power

/usr/local/bin/check-ups

#!/bin/sh

# Shutdown delay in sec.

shutdown_delay=600

# Temp file name

poff_file="/usr/local/bin/poweroff"

input_voltage=$(snmpget -v1 -c public -O qv 192.168.1.200 1.3.6.1.4.1.318.1.1.1.3.2.1.0)

if [ $input_voltage -eq 0 ]; then

    if [ -e $poff_file ]; then

        if [ `expr $(date +%s) - $(date -r $poff_file +%s)` -ge $shutdown_delay ]; then

            # Remove power off temp file and shuting down

            rm $poff_file

            /sbin/shutdown -P now

        fi

    else

        touch $poff_file

    fi

else

    if [ -e $poff_file ]; then

        rm $poff_file

    fi

fi

/usr/local/bin/power-monitor

#!/bin/sh

cnt=0             # Shutdown delay counter

shutdown_delay=60 # Count of 10-sec intervals before shutdown

while :; do

sleep 10

if [ $(snmpget -v1 -c public -O qv 192.168.1.200 1.3.6.1.4.1.318.1.1.1.3.2.1.0) -eq 0 ]; then

    cnt=`expr $cnt + 1`

else

    cnt=0

fi

if [ $cnt -gt $shutdown_delay ]; then

    /sbin/shutdown -P now

fi

done

/etc/systemd/system/power-monitor.service

[Unit]

Description=Power Monitor Service

After=network.target

Requires=network.target

[Service]

Type=simple

ExecStart=/usr/local/bin/power-monitor

User=root

Group=root

[Install]

WantedBy=multi-user.target

$ sudo systemctl enable power-monitor