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mysql_backup/mysql_backup.sh

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#! /bin/bash
# script de sauvegarde mysql
# pour version 5.7, ne sauvegarde pas la base information_schema
# sauvegarde également les privilèges
rotate=15
defaultfile=/root/.my.cnf
rdir=${1:-/root/backups/mysql}
dir=${rdir}/$(date "+%Y.%m.%d")
error=0
status_file=/var/run/zabbix/backup_mysql.status
mkdir -p $dir
cd $dir
# check if we use binlog
log_bin=$(mysql --defaults-file=${defaultfile} --batch -e "show variables like 'log_bin'" --skip-column-names| awk '{print $2}')
if [ log_bin='OFF' ] ; then master_data_option='' ; else master_data_option='--master-data=2' ; fi
bases=$(mysql --defaults-file=${defaultfile} --batch -e 'show databases' --skip-column-names)
for b in $bases ; do
if [ "$b" == "information_schema" ] ; then continue ; fi
if [ "$b" == "performance_schema" ] ; then continue ; fi
mysqldump --defaults-file=${defaultfile} --single-transaction $master_data_option --events --routines --databases $b --opt > ${b}.sql
let "error=$error+$?"
gzip --force ${b}.sql
done
mysql --defaults-file=${defaultfile} -BNe "select concat('\'',user,'\'@\'',host,'\'') from mysql.user where user != 'root'" | \
while read uh; do mysql --defaults-file=${defaultfile} -BNe "show grants for $uh" | sed 's/ $/;/; s/\\\\/\\/g'; done > grants.sql
if [ $error -eq 0 ] ; then
find $rdir -maxdepth 1 -type d -mtime +${rotate} -exec rm -fr {} \;
fi
test -d ${status_file%/*} && echo $error > $status_file
exit $error