У меня есть эти каталоги SRC
, DST
, COMPARE
:
/opt/SRC
file1
file2
file3
/opt/DST
file1
file2
/opt/COMPARE
пустой
Хотелось бы:
$ ls /opt/COMPARE
file3
Но когда я работаю:
rsync -avz --compare-dest=/opt/COMPARE /opt/SRC/ /opt/DST
/opt/COMPARE
каталог все еще пуст, почему?
Я считаю, что вы применяете --compare-dest
неправильно.
Из man rsync
blockquote>--compare-dest=DIR This option instructs rsync to use DIR on the destination machine as an additional hierarchy to compare destination files against doing transfers (if the files are missing in the destination directory). If a file is found in DIR that is identical to the sender’s file, the file will NOT be transferred to the destination direc‐ tory. This is useful for creating a sparse backup of just files that have changed from an earlier backup. This option is typically used to copy into an empty (or newly created) directory. Beginning in version 2.6.4, multiple --compare-dest directories may be provided, which will cause rsync to search the list in the order specified for an exact match. If a match is found that differs only in attributes, a local copy is made and the attributes updated. If a match is not found, a basis file from one of the DIRs will be selected to try to speed up the transfer. If DIR is a relative path, it is relative to the destination directory. See also --copy-dest and --link-dest. NOTE: beginning with version 3.1.0, rsync will remove a file from a non-empty des‐ tination hierarchy if an exact match is found in one of the compare-dest hierar‐ chies (making the end result more closely match a fresh copy).
Если я правильно читаю,
--compare-dest
используется для остановки отправки определенных файлов. Это позволит вам создать новый каталог назначения копирования, содержащий только файлы, которые изменились с момента последней копии. Сортируйте инкрементную копию, если хотите.