数据库备份，远程执行SHELL脚本

#!/bin/sh

keepDays=30
currentTime=`date "+%Y-%m-%d-%H-%M"`
backPath="/sql_bak/"
dbName="smDB"
echo ${currentTime}
/usr/bin/mysqldump --default-character-set utf8 -u xxx --password=xxx --database ${dbName} > ${backPath}${dbName}.${currentTime}.sql;

/usr/bin/scp ${backPath}${dbName}.${currentTime}.sql dxx@1.2.3.4:${backPath}${dbName}.${currentTime}.sql;

find ${backPath} -name "*.sql" -mtime +${keepDays} -exec rm {} \;

ssh -l xxx 1.2.2.2 "find ${backPath} -name '*.sql' -mtime +${keepDays} | xargs rm -f "