apcupsd

commfailure

#!/bin/sh
#
# This shell script if placed in /etc/apcupsd
# will be called by /etc/apcupsd/apccontrol when apcupsd
# loses contact with the UPS (i.e. the serial connection is not responding).
# We send an email message to root to notify him.
#

HOSTNAME=`hostname`
MSG="$HOSTNAME Communications with UPS $1 lost"

wait=12

# Wait $wait seconds, and only send email
# if still not online
sleep $wait
status=$(/sbin/apcaccess status)

if echo "$status" | grep -q '^STATUS.*COMMLOST' ; then
    logger -t apcupsd "commfailure for over $wait seconds. Sending mail"
    (
        echo "$MSG for over $wait seconds"
        echo "$status"
    ) | $APCUPSD_MAIL -s "$MSG" $SYSADMIN
    # ensure mail will also be sent on restore
    rm -f /run/apcupsd.nomail
else
    touch /run/apcupsd.nomail
    logger -t apcupsd "commfailure for less than $wait seconds. Created nomail file, and not sending any email."
fi

exit 0

commok

#!/bin/sh
#
# This shell script if placed in /etc/apcupsd
# will be called by /etc/apcupsd/apccontrol when apcupsd
# restores contact with the UPS (i.e. the serial connection is restored).
# We send an email message to root to notify him.
#

# wait at least as long as the wait defined in commfailure
# so that we know if we need to send mail or not

wait=13

sleep $wait

if [ -f /run/apcupsd.nomail ]; then
    logger -t apcupsd "Skip sending mail on restore (found nomail set by commfailure)"
    exit
fi

HOSTNAME=`hostname`
MSG="$HOSTNAME Communications with UPS $1 restored"
#
(
   echo "$MSG"
   echo " "
   /sbin/apcaccess status
) | $APCUPSD_MAIL -s "$MSG" $SYSADMIN
exit 0

von https://serverfault.com/questions/444367/apcupsd-slave-client-keeps-loosing-and-restoring-communications-with-ups-master/976696#976696
muss noch mit shellcheck ueberarbeiten fuer qualitaet