> And let me do what you suggest. What is the difference, and is --backup
> better than the other ?
Only in conjunction with -backup-dir, for example
--backup --backup-dir=_Changed and deleted files/2021/Jul/19@21:21
The man page's entry for --backup suggests using it with either
--backup-dir or --suffix
On 19/07/2021 19:22, lisa-as...@perso.be wrote:
From: Charles via rsync <rsync@lists.samba.org>
To: rsync@lists.samba.org
Subject: Re: Utility of --backup
Date: 19/07/2021 14:26:59 Europe/Paris
>IThe --backup option is great for creating "rolling full" backups which
>look exactly like the backed up tree except for the existence of the
>backup directory
I am not really understanding the "Rolling Full Backup". Suppose I have
a directory
and use `rsync -av --progress --log-file="$logfl" "$source" "$destin"`
And let me do what you suggest. What is the difference, and is --backup
better than the other ?
Would the command be
rsync --backup -v --progress --log-file="$logfl" "$source" "$destin"
>Here's how a Linux backup directory tree looks as created by backup
>utility bung's bu_rsync script
+-- bin -> usr/bin
+-- boot
| +-- grub
+-- _Changed and deleted files
| +-- 2021
| +-- Jul
| | +-- 01@17:45
| | | +-- opt
| | | | +-- tomcat
| | | +-- root
| | | +-- var
| | | +-- backups
| | | +-- cache
| | | +-- lib
| | | +-- local
| | | +-- log
| | | +-- mail
| | | +-- spool
...
| | +-- 17@17:46
...
| | +-- 18@17:45
...
| +-- Jun
...
| +-- 29@17:45
...
| +-- 30@17:45
...
+-- dev
+-- etc
...
>A "rolling full" backup is great to restore from for small organisations
>which do not do enough restores to be well practised because the backup
>looks exactly like the source except for the additional "_Changed and
>deleted files" directory.
>Perfect point in time restores are not possible but adequate
>approximations (point in time but with the possibility of some extra
>files) can be done by restoring the last backup and then each of the
>changed and deleted files sets until the latest set after the desired
>point in time
--
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