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.. IMPORTANT : this file is auto - generated from borg ' s built - in help , do not edit !
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.. _borg_prune :
borg prune
----------
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.. code - block :: none
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borg [ common options ] prune [ options ] [ REPOSITORY ]
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.. only :: html
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.. class :: borg - options - table
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+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| ** positional arguments ** |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` REPOSITORY `` | repository to prune |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| ** optional arguments ** |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` - n `` , `` -- dry - run `` | do not change repository |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
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| | `` -- force `` | force pruning of corrupted archives , use `` -- force -- force `` in case `` -- force `` does not work . |
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+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` - s `` , `` -- stats `` | print statistics for the deleted archive |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` -- list `` | output verbose list of archives it keeps / prunes |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` -- keep - within INTERVAL `` | keep all archives within this time interval |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` -- keep - last `` , `` -- keep - secondly `` | number of secondly archives to keep |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` -- keep - minutely `` | number of minutely archives to keep |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` - H `` , `` -- keep - hourly `` | number of hourly archives to keep |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` - d `` , `` -- keep - daily `` | number of daily archives to keep |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` - w `` , `` -- keep - weekly `` | number of weekly archives to keep |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` - m `` , `` -- keep - monthly `` | number of monthly archives to keep |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` - y `` , `` -- keep - yearly `` | number of yearly archives to keep |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` -- save - space `` | work slower , but using less space |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| .. class :: borg - common - opt - ref |
| |
| : ref : `common_options` |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| ** Archive filters ** — Archive filters can be applied to repository targets . |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` - P PREFIX `` , `` -- prefix PREFIX `` | only consider archive names starting with this prefix . |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
| | `` - a GLOB `` , `` -- glob - archives GLOB `` | only consider archive names matching the glob . sh : rules apply , see " borg help patterns " . `` -- prefix `` and `` -- glob - archives `` are mutually exclusive . |
+-----------------------------------------------------------------------------+---------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------+
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.. raw :: html
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< script type = 'text/javascript' >
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$ ( document ) . ready ( function () {
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$ ( '.borg-options-table colgroup' ) . remove ();
})
</ script >
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.. only :: latex
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REPOSITORY
repository to prune
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optional arguments
- n , -- dry - run do not change repository
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-- force force pruning of corrupted archives , use `` -- force -- force `` in case `` -- force `` does not work .
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- s , -- stats print statistics for the deleted archive
-- list output verbose list of archives it keeps / prunes
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-- keep - within INTERVAL keep all archives within this time interval
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-- keep - last , -- keep - secondly number of secondly archives to keep
-- keep - minutely number of minutely archives to keep
- H , -- keep - hourly number of hourly archives to keep
- d , -- keep - daily number of daily archives to keep
- w , -- keep - weekly number of weekly archives to keep
- m , -- keep - monthly number of monthly archives to keep
- y , -- keep - yearly number of yearly archives to keep
-- save - space work slower , but using less space
: ref : `common_options`
|
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Archive filters
- P PREFIX , -- prefix PREFIX only consider archive names starting with this prefix .
- a GLOB , -- glob - archives GLOB only consider archive names matching the glob . sh : rules apply , see " borg help patterns " . `` -- prefix `` and `` -- glob - archives `` are mutually exclusive .
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Description
~~~~~~~~~~~
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The prune command prunes a repository by deleting all archives not matching
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any of the specified retention options .
Important : Repository disk space is ** not ** freed until you run `` borg compact `` .
This command is normally used by automated backup scripts wanting to keep a
certain number of historic backups .
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Also , prune automatically removes checkpoint archives ( incomplete archives left
behind by interrupted backup runs ) except if the checkpoint is the latest
archive ( and thus still needed ) . Checkpoint archives are not considered when
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comparing archive counts against the retention limits ( `` -- keep - X `` ) .
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If a prefix is set with - P , then only archives that start with the prefix are
considered for deletion and only those archives count towards the totals
specified by the rules .
Otherwise , * all * archives in the repository are candidates for deletion !
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There is no automatic distinction between archives representing different
contents . These need to be distinguished by specifying matching prefixes .
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If you have multiple sequences of archives with different data sets ( e . g .
from different machines ) in one shared repository , use one prune call per
data set that matches only the respective archives using the - P option .
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The `` -- keep - within `` option takes an argument of the form " <int><char> " ,
where char is " H " , " d " , " w " , " m " , " y " . For example , `` -- keep - within 2 d `` means
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to keep all archives that were created within the past 48 hours .
" 1m " is taken to mean " 31d " . The archives kept with this option do not
count towards the totals specified by any other options .
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A good procedure is to thin out more and more the older your backups get .
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As an example , `` -- keep - daily 7 `` means to keep the latest backup on each day ,
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up to 7 most recent days with backups ( days without backups do not count ) .
The rules are applied from secondly to yearly , and backups selected by previous
rules do not count towards those of later rules . The time that each backup
starts is used for pruning purposes . Dates and times are interpreted in
the local timezone , and weeks go from Monday to Sunday . Specifying a
negative number of archives to keep means that there is no limit .
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The `` -- keep - last N `` option is doing the same as `` -- keep - secondly N `` ( and it will
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keep the last N archives under the assumption that you do not create more than one
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backup archive in the same second ) .
When using `` -- stats `` , you will get some statistics about how much data was
deleted - the " Deleted data " deduplicated size there is most interesting as
that is how much your repository will shrink .
Please note that the " All archives " stats refer to the state after pruning .