linux 增量备份脚本,保留7天

周一全量其他时间为增量，删除七天前的备份

#!/bin/sh week=`date "+%u"` today=`date "+%Y%m%d"` source=/source backup=/backup

cd $backup

if [ $week -eq 1 ]; then rm -rf snapshot tar -g snapshot -zcPf "full$today.tar.gz" $source else tar -g snapshot -zcPf "inc$today.tar.gz" $source fi find /miniobackup -name "*.tar.gz" -mtime +7 -exec rm -rf {} \;