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ls ÃüÁîºó£¬Îļþ½«×Ô¶¯°´Ê±¼äÅÅÐòµÄ£¬ÕâÑù¾Í¿ÉÒÔ·½±ãµÄɾ³ýÈýÌìÒÔǰµÄ±¸·ÝÎļþ£¬ÓÚÊÇ
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#/usr/bin/dbbackup
#! /bin/bash
dbsum=$#
if [ "${dbsum}" -eq 0 ];then
echo "Error:no database chosed"
exit 1
fi
mkdir -p /backup/
backdir=/backup/
touch /var/log/dbbackup.log
datetime=`date +"%Y%m%d"`
filesum=`ls ${backdir} | wc -l`
if [ "${filesum}" -ge 3 ];then
cd ${backdir}
rm -rf `ls | head -1`
fi
cd /usr/local/mysql/bin
for i in $*;do
echo "backing up for database $i starting ..."
mysqldump -uroot -ppassword -e --default-character-set=utf8 $i > ${backdir}$i.sql
echo "backing up for database $i completed"
done
echo "tar and gzip the backed file now ..."
cd ${backdir}
tar -c *.sql | gzip >./${datetime}.tar.gz
rm -rf *.sql
echo "all success ! you can find the backed file in ${backdir} suffixed by .tar.gz"
exit 0
±à¼­crontab£¬Ã¿Íí11£º30±¸·ÝÊý¾Ý
crontab -e ¼ÓÈëÈçÏÂÄÚÈÝ£º
30 23 * * * /usr/bin/dbbackup dbname1 dbname2 > /var/log/dbbackup.log 2>&1


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