MySQLDump 备份 Shell 脚本

#!/bin/sh -
echo "************************************"
echo "----Enterprise Cloud Data Center----"
echo "--------By SERVEN-------------------"
echo "************************************"
db_user="databack"
db_passwd="D9934393B04j"
db_host="localhost"
backup_dir="/home/backup/mysql"
time="$(date +"%y%m%d%H%M%S")"
MYSQL="/usr/bin/mysql"
MYSQLDUMP="/usr/bin/mysqldump"
MKDIR="/bin/mkdir"
RM="/bin/rm"
MV="/bin/mv"
GZIP="/bin/gzip"
test ! -w $backup_dir && echo "Error: $backup_dir is un-writeable." && exit 0
test ! -d "$backup_dir/$time/" && $MKDIR "$backup_dir/$time"
all_db="$($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   --skip-lock-tables $db | $GZIP -9 > "$backup_dir/$time/$db.tar.gz"
done
test -d "$backup_dir/backup.5/" && $RM -rf "$backup_dir/backup.5"
for int in 4 3 2 1 0
do
if(test -d "$backup_dir"/backup."$int")
then
next_int='expr $int + 1'
fi
done
echo "The backup is complete"
find /home/backup/mysql/*  -mtime +1|xargs rm -rf
find /home/backup/mysql -type d -empty -exec rmdir {} ; >/dev/null 2>&1
exit 0;