Мониторинг сертификатов java для JMX с отправкой данных в Zabbix

Содержимое скрипта.

#!/bin/sh
#https://gist.github.com/zatarra/5570733

KEYSTORE="/home/.certstore"
PASSWORD="stR0nGPa((word"

keytool -list -v -keystore "$KEYSTORE" -storepass $PASSWORD | grep Alias | awk '{print $3}' | while read ALIAS
do
echo $ALIAS".on_cert_alias_name"
#EXPIRACY=`keytool -list -v -keystore "$KEYSTORE" -storepass $PASSWORD -alias $ALIAS | grep Valid`
UNTIL=`keytool -list -v -keystore "$KEYSTORE" -storepass $PASSWORD -alias $ALIAS | grep Valid | perl -ne 'if(/until: (.*?)\n/) { print "$1\n"; }'`
echo "1 - $UNTIL"
UNTIL_SECONDS=`date -d "$UNTIL" +%s`
echo "2 - $UNTIL_SECONDS"
REMAINING_DAYS=$(( ($UNTIL_SECONDS - $(date +%s)) / 60 / 60 / 24 ))
echo "3 - $REMAINING_DAYS"
zabbix_sender -z zabbix-server.com -p 10051 -s zabbix-server.com -k $ALIAS".on_cert_alias_name" -o $REMAINING_DAYS
done

KEYSTORE="/home/.keystore"

keytool -list -v -keystore "$KEYSTORE" -storepass $PASSWORD | grep Alias | awk '{print $3}' | while read ALIAS
do
echo $ALIAS".on_client"
#EXPIRACY=`keytool -list -v -keystore "$KEYSTORE" -storepass $PASSWORD -alias $ALIAS | grep Valid`
UNTIL=`keytool -list -v -keystore "$KEYSTORE" -storepass $PASSWORD -alias $ALIAS | grep Valid | perl -ne 'if(/until: (.*?)\n/) { print "$1\n"; }'`
echo "1 - $UNTIL"
UNTIL_SECONDS=`date -d "$UNTIL" +%s`
echo "2 - $UNTIL_SECONDS"
REMAINING_DAYS=$(( ($UNTIL_SECONDS - $(date +%s)) / 60 / 60 / 24 ))
echo "3 - $REMAINING_DAYS"
zabbix_sender -z zabbix-server.com -p 10051 -s zabbix-server.com -k $ALIAS".on_client" -o $REMAINING_DAYS
done

В крон добавляется задание:

* * * * * /home/./check_cert_date.sh

Item в Zabbix (в скрипте key для Item это $ALIAS».on_client»):

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