Voici un script Bourne Shell qui redémarre un ordinateur automatiquement lorsque le ping vers un hôte échoue.
#! /bin/bash
# autoreboot.sh version 1.0
# 2017.01.15 shebangthedolphins.net first version
#---------------------------------------------------
# this script automatically reboot a computer if he cannot ping a host
#---------------------------------------------------
i=0
LOG="/var/log/auto_reboot.log"
IP="10.10.1.22"
IP2="10.10.1.20"
ping -c 1 -q "$IP" >/dev/null 2>&1 || ping -c 1 -q "$IP2" >/dev/null 2>&1
RES="$?"
if [ "$RES" != "0" ]; then
while [ "$i" -lt 5 ]
do
sleep 10s
ping -c 1 -q "$IP" >/dev/null 2>&1 || ping -c 1 -q "$IP2" >/dev/null 2>&1
RES="$?"
if [ "$RES" != "0" ]; then
i=$(( $i + 1 ))
echo "$(LC_ALL=en_EN.utf8 date "+%b %e %H:%M:%S") LOG : error n°$i" >> "$LOG"
if [ "$i" == "5" ]; then
echo "$(LC_ALL=en_EN.utf8 date "+%b %e %H:%M:%S") LOG : reboot" >> "$LOG"
reboot
fi
else
echo "$(LC_ALL=en_EN.utf8 date "+%b %e %H:%M:%S") LOG : warning but no reboot" >> "$LOG"
exit 0
fi
done
else
echo "$(LC_ALL=en_EN.utf8 date "+%b %e %H:%M:%S") LOG : OK" >> "$LOG"
fi
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