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#!/bin/sh
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PARAM=${1:-noexistent}
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CACHE_FILE=/tmp/zbx-mysql_variables
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test -z `/usr/bin/find ${CACHE_FILE} -mmin -5 2>/dev/null` && \
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echo "SHOW VARIABLES" | mysql --defaults-file=/etc/mysql/debian.cnf \
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--batch --skip-pager --skip-column-names >${CACHE_FILE}
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cat ${CACHE_FILE} | perl -ne "print \$1 if m/^${PARAM}\t([\d.]+)/"
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