全名：

Rsync time backup

其实就是rsync+time machine，原理就是简化了rsnyc操作，可以实现增量备份。

常用命令：

sh rsync.sh /home/www/mztine.com /home/www/mztine_back

rsync_tmbackup.sh -p 2222 /home user@example.com:/mnt/backup_drive

rsync_tmbackup.sh user@example.com:/home /mnt/backup_drive

cron脚本，自动检测执行任务：

0 */1 * * * if [[ -d /mnt/backup ]]; then rsync_tmbackup.sh /home /mnt/backup; fi

rsync time backup语法大全说明：

Usage: rsync_tmbackup.sh [OPTION]… <[USER@HOST:]SOURCE> <[USER@HOST:]DESTINATION> [exclude-pattern-file]

Options
-p, –port           SSH port.
-h, –help           Display this help message.
–rsync-get-flags    Display the default rsync flags that are used for backup.
–rsync-set-flags    Set the rsync flags that are going to be used for backup.
–log-dir            Set the log file directory. If this flag is set, generated files will
                     not be managed by the script – in particular they will not be
                     automatically deleted.
–strategy           Set the expiration strategy. Default: "1:1 30:7 365:30" means after one
                     day, keep one backup per day. After 30 days, keep one backup every 7 days.
                     After 365 days keep one backup every 30 days.
–no-auto-expire     Set option to disable automatically purging old backups when out of space.