背景

我正在尝试对我的 Ubuntu 系统进行非常全面的备份。我正在运行以下rsync命令：

sudo rsync -aAEHSXxv --progress --delete --exclude={/home/sterlingbutters/Butters-Ubuntu-Backup/*, /home/*/.cache/*, /home/*/.local/share/Trash/*, /dev/*, /proc/*, /sys/*, /tmp/*, /mnt/*, /media/*, /lost+found} / /home/sterlingbutters/Butters-Ubuntu-Backup

文件结构应该很明显的地方。

问题

1. 我得到以下关于不存在的文件/目录的输出：

   rsync: change_dir "/home/*/.cache" failed: No such file or directory (2)
   rsync: change_dir "/home/*/.local/share/Trash" failed: No such file or directory (2)
   rsync: link_stat "/dev/*," failed: No such file or directory (2)
   rsync: link_stat "/proc/*," failed: No such file or directory (2)
   rsync: link_stat "/sys/*," failed: No such file or directory (2)
   rsync: link_stat "/tmp/*," failed: No such file or directory (2)
   rsync: link_stat "/mnt/*," failed: No such file or directory (2)
   rsync: link_stat "/media/*," failed: No such file or directory (2)
   rsync: link_stat "/lost+found}" failed: No such file or directory (2)
   created directory /home/sterlingbutters/Butters-Ubuntu-Backup
   IO error encountered -- skipping file deletion
   

   这是否意味着源或目标上不存在该文件？（因为它们清楚地存在于源上）

2. 后来，我开始收到一堆关于.cache我认为我排除的目录的条目：

   ... 
   home/sterlingbutters/.cache/mozilla/firefox/90d4yr8z.default/cache2/entries/76A1426700B3173C5B976F65F04FA6CD01D90D15
   ...
   

3. 我很担心“看看会发生什么”，因为如果没有正确排除目录，我可能会遇到无限复制循环，因为目标目录位于 ~/.

4. 我的代码几乎完全遵循此处文档中指定的模式（我所做的唯一更改我觉得应该仍然可以接受）：我也觉得我的语法遵循我在其他论坛帖子中找到的语法。即使没有，这不会与链接中的文档产生差异吗？

感谢所有帮助 - 谢谢！