????mysql????????????????????????????????μ?10?α????
?????????????
????????????????
????mkdir  /backup
?????????д??????mysql_backup.sh

 

#!/bin/sh
# mysql_backup.sh: ????mysql???????????????????μ?10??.
#??????????
db_user="root"
#?????????
db_passwd="imsuser"
#?????IP
db_host="localhost"
#???????
db_name="ims"
#??????????????λ??.
backup_dir="/backup/mysqldata"
#????????????? (dd-mm-yyyy)
time="$(date +"%d-%m-%Y")"
# mysql?? mysqldump??????????????????в????
#????????????б?????????????д
MYSQL="/usr/local/mysql/bin/mysql"
MYSQLDUMP="/usr/local/mysql/bin/mysqldump"
MKDIR="/bin/mkdir"
RM="/bin/rm"
MV="/bin/mv"
GZIP="/bin/gzip"
#??鱸???? ????????д洢????????
test ! -w $backup_dir && $MKDIR "$backup_dir"
# ??鱸???? ????????д洢????????
test ! -d "$backup_dir/backup.0/" && $MKDIR "$backup_dir/backup.0/"
# ??????е?????????
#all_db="$($MYSQL -u $db_user -h $db_host -p$db_passwd -Bse 'show databases')"
#for db in $all_db
#do
$MYSQLDUMP -u $db_user -h $db_host -p$db_passwd $db_name | $GZIP -9 > "$backup_dir/backup.0/$time.$db_name.gz"
#done
# ????????????
test -d "$backup_dir/backup.10/" && $RM -rf "$backup_dir/backup.10"
# rotate backup directory
for int in 9 8 7 6 5 4 3 2 1 0
do
if(test -d "$backup_dir"/backup."$int")
then
next_int=`expr $int + 1`
$MV "$backup_dir"/backup."$int" "$backup_dir"/backup."$next_int"
fi
done
exit 0;

??????????????????????
????chmod +x mysql_backup.sh
???????????????м??
????vi /etc/crontab
????????00 5 * * * root /backup/mysql_backup.sh ???5???????????????