create.rst.inc 44 KB

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  1. .. IMPORTANT: this file is auto-generated from borg's built-in help, do not edit!
  2. .. _borg_create:
  3. borg create
  4. -----------
  5. .. code-block:: none
  6. borg [common options] create [options] NAME [PATH...]
  7. .. only:: html
  8. .. class:: borg-options-table
  9. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  10. | **positional arguments** |
  11. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  12. | | ``NAME`` | specify the archive name |
  13. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  14. | | ``PATH`` | paths to archive |
  15. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  16. | **options** |
  17. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  18. | | ``-n``, ``--dry-run`` | do not create a backup archive |
  19. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  20. | | ``-s``, ``--stats`` | print statistics for the created archive |
  21. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  22. | | ``--list`` | output verbose list of items (files, dirs, ...) |
  23. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  24. | | ``--filter STATUSCHARS`` | only display items with the given status characters (see description) |
  25. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  26. | | ``--json`` | output stats as JSON. Implies ``--stats``. |
  27. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  28. | | ``--no-cache-sync`` | experimental: do not synchronize the cache. Implies not using the files cache. |
  29. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  30. | | ``--stdin-name NAME`` | use NAME in archive for stdin data (default: 'stdin') |
  31. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  32. | | ``--stdin-user USER`` | set user USER in archive for stdin data (default: do not store user/uid) |
  33. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  34. | | ``--stdin-group GROUP`` | set group GROUP in archive for stdin data (default: do not store group/gid) |
  35. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  36. | | ``--stdin-mode M`` | set mode to M in archive for stdin data (default: 0660) |
  37. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  38. | | ``--content-from-command`` | interpret PATH as command and store its stdout. See also section Reading from stdin below. |
  39. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  40. | | ``--paths-from-stdin`` | read DELIM-separated list of paths to back up from stdin. All control is external: it will back up all files given - no more, no less. |
  41. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  42. | | ``--paths-from-command`` | interpret PATH as command and treat its output as ``--paths-from-stdin`` |
  43. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  44. | | ``--paths-delimiter DELIM`` | set path delimiter for ``--paths-from-stdin`` and ``--paths-from-command`` (default: ``\n``) |
  45. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  46. | .. class:: borg-common-opt-ref |
  47. | |
  48. | :ref:`common_options` |
  49. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  50. | **Include/Exclude options** |
  51. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  52. | | ``-e PATTERN``, ``--exclude PATTERN`` | exclude paths matching PATTERN |
  53. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  54. | | ``--exclude-from EXCLUDEFILE`` | read exclude patterns from EXCLUDEFILE, one per line |
  55. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  56. | | ``--pattern PATTERN`` | include/exclude paths matching PATTERN |
  57. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  58. | | ``--patterns-from PATTERNFILE`` | read include/exclude patterns from PATTERNFILE, one per line |
  59. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  60. | | ``--exclude-caches`` | exclude directories that contain a CACHEDIR.TAG file (http://www.bford.info/cachedir/spec.html) |
  61. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  62. | | ``--exclude-if-present NAME`` | exclude directories that are tagged by containing a filesystem object with the given NAME |
  63. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  64. | | ``--keep-exclude-tags`` | if tag objects are specified with ``--exclude-if-present``, don't omit the tag objects themselves from the backup archive |
  65. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  66. | | ``--exclude-nodump`` | exclude files flagged NODUMP |
  67. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  68. | **Filesystem options** |
  69. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  70. | | ``-x``, ``--one-file-system`` | stay in the same file system and do not store mount points of other file systems - this might behave different from your expectations, see the description below. |
  71. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  72. | | ``--numeric-ids`` | only store numeric user and group identifiers |
  73. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  74. | | ``--atime`` | do store atime into archive |
  75. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  76. | | ``--noctime`` | do not store ctime into archive |
  77. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  78. | | ``--nobirthtime`` | do not store birthtime (creation date) into archive |
  79. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  80. | | ``--noflags`` | do not read and store flags (e.g. NODUMP, IMMUTABLE) into archive |
  81. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  82. | | ``--noacls`` | do not read and store ACLs into archive |
  83. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  84. | | ``--noxattrs`` | do not read and store xattrs into archive |
  85. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  86. | | ``--sparse`` | detect sparse holes in input (supported only by fixed chunker) |
  87. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  88. | | ``--files-cache MODE`` | operate files cache in MODE. default: ctime,size,inode |
  89. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  90. | | ``--read-special`` | open and read block and char device files as well as FIFOs as if they were regular files. Also follows symlinks pointing to these kinds of files. |
  91. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  92. | **Archive options** |
  93. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  94. | | ``--comment COMMENT`` | add a comment text to the archive |
  95. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  96. | | ``--timestamp TIMESTAMP`` | manually specify the archive creation date/time (yyyy-mm-ddThh:mm:ss[(+|-)HH:MM] format, (+|-)HH:MM is the UTC offset, default: local time zone). Alternatively, give a reference file/directory. |
  97. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  98. | | ``-c SECONDS``, ``--checkpoint-interval SECONDS`` | write checkpoint every SECONDS seconds (Default: 1800) |
  99. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  100. | | ``--checkpoint-volume BYTES`` | write checkpoint every BYTES bytes (Default: 0, meaning no volume based checkpointing) |
  101. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  102. | | ``--chunker-params PARAMS`` | specify the chunker parameters (ALGO, CHUNK_MIN_EXP, CHUNK_MAX_EXP, HASH_MASK_BITS, HASH_WINDOW_SIZE). default: buzhash,19,23,21,4095 |
  103. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  104. | | ``-C COMPRESSION``, ``--compression COMPRESSION`` | select compression algorithm, see the output of the "borg help compression" command for details. |
  105. +-------------------------------------------------------+---------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  106. .. raw:: html
  107. <script type='text/javascript'>
  108. $(document).ready(function () {
  109. $('.borg-options-table colgroup').remove();
  110. })
  111. </script>
  112. .. only:: latex
  113. NAME
  114. specify the archive name
  115. PATH
  116. paths to archive
  117. options
  118. -n, --dry-run do not create a backup archive
  119. -s, --stats print statistics for the created archive
  120. --list output verbose list of items (files, dirs, ...)
  121. --filter STATUSCHARS only display items with the given status characters (see description)
  122. --json output stats as JSON. Implies ``--stats``.
  123. --no-cache-sync experimental: do not synchronize the cache. Implies not using the files cache.
  124. --stdin-name NAME use NAME in archive for stdin data (default: 'stdin')
  125. --stdin-user USER set user USER in archive for stdin data (default: do not store user/uid)
  126. --stdin-group GROUP set group GROUP in archive for stdin data (default: do not store group/gid)
  127. --stdin-mode M set mode to M in archive for stdin data (default: 0660)
  128. --content-from-command interpret PATH as command and store its stdout. See also section Reading from stdin below.
  129. --paths-from-stdin read DELIM-separated list of paths to back up from stdin. All control is external: it will back up all files given - no more, no less.
  130. --paths-from-command interpret PATH as command and treat its output as ``--paths-from-stdin``
  131. --paths-delimiter DELIM set path delimiter for ``--paths-from-stdin`` and ``--paths-from-command`` (default: ``\n``)
  132. :ref:`common_options`
  133. |
  134. Include/Exclude options
  135. -e PATTERN, --exclude PATTERN exclude paths matching PATTERN
  136. --exclude-from EXCLUDEFILE read exclude patterns from EXCLUDEFILE, one per line
  137. --pattern PATTERN include/exclude paths matching PATTERN
  138. --patterns-from PATTERNFILE read include/exclude patterns from PATTERNFILE, one per line
  139. --exclude-caches exclude directories that contain a CACHEDIR.TAG file (http://www.bford.info/cachedir/spec.html)
  140. --exclude-if-present NAME exclude directories that are tagged by containing a filesystem object with the given NAME
  141. --keep-exclude-tags if tag objects are specified with ``--exclude-if-present``, don't omit the tag objects themselves from the backup archive
  142. --exclude-nodump exclude files flagged NODUMP
  143. Filesystem options
  144. -x, --one-file-system stay in the same file system and do not store mount points of other file systems - this might behave different from your expectations, see the description below.
  145. --numeric-ids only store numeric user and group identifiers
  146. --atime do store atime into archive
  147. --noctime do not store ctime into archive
  148. --nobirthtime do not store birthtime (creation date) into archive
  149. --noflags do not read and store flags (e.g. NODUMP, IMMUTABLE) into archive
  150. --noacls do not read and store ACLs into archive
  151. --noxattrs do not read and store xattrs into archive
  152. --sparse detect sparse holes in input (supported only by fixed chunker)
  153. --files-cache MODE operate files cache in MODE. default: ctime,size,inode
  154. --read-special open and read block and char device files as well as FIFOs as if they were regular files. Also follows symlinks pointing to these kinds of files.
  155. Archive options
  156. --comment COMMENT add a comment text to the archive
  157. --timestamp TIMESTAMP manually specify the archive creation date/time (yyyy-mm-ddThh:mm:ss[(+|-)HH:MM] format, (+|-)HH:MM is the UTC offset, default: local time zone). Alternatively, give a reference file/directory.
  158. -c SECONDS, --checkpoint-interval SECONDS write checkpoint every SECONDS seconds (Default: 1800)
  159. --checkpoint-volume BYTES write checkpoint every BYTES bytes (Default: 0, meaning no volume based checkpointing)
  160. --chunker-params PARAMS specify the chunker parameters (ALGO, CHUNK_MIN_EXP, CHUNK_MAX_EXP, HASH_MASK_BITS, HASH_WINDOW_SIZE). default: buzhash,19,23,21,4095
  161. -C COMPRESSION, --compression COMPRESSION select compression algorithm, see the output of the "borg help compression" command for details.
  162. Description
  163. ~~~~~~~~~~~
  164. This command creates a backup archive containing all files found while recursively
  165. traversing all paths specified. Paths are added to the archive as they are given,
  166. that means if relative paths are desired, the command has to be run from the correct
  167. directory.
  168. The slashdot hack in paths (recursion roots) is triggered by using ``/./``:
  169. ``/this/gets/stripped/./this/gets/archived`` means to process that fs object, but
  170. strip the prefix on the left side of ``./`` from the archived items (in this case,
  171. ``this/gets/archived`` will be the path in the archived item).
  172. When giving '-' as path, borg will read data from standard input and create a
  173. file 'stdin' in the created archive from that data. In some cases it's more
  174. appropriate to use --content-from-command, however. See section *Reading from
  175. stdin* below for details.
  176. The archive will consume almost no disk space for files or parts of files that
  177. have already been stored in other archives.
  178. The archive name needs to be unique. It must not end in '.checkpoint' or
  179. '.checkpoint.N' (with N being a number), because these names are used for
  180. checkpoints and treated in special ways.
  181. In the archive name, you may use the following placeholders:
  182. {now}, {utcnow}, {fqdn}, {hostname}, {user} and some others.
  183. Backup speed is increased by not reprocessing files that are already part of
  184. existing archives and weren't modified. The detection of unmodified files is
  185. done by comparing multiple file metadata values with previous values kept in
  186. the files cache.
  187. This comparison can operate in different modes as given by ``--files-cache``:
  188. - ctime,size,inode (default)
  189. - mtime,size,inode (default behaviour of borg versions older than 1.1.0rc4)
  190. - ctime,size (ignore the inode number)
  191. - mtime,size (ignore the inode number)
  192. - rechunk,ctime (all files are considered modified - rechunk, cache ctime)
  193. - rechunk,mtime (all files are considered modified - rechunk, cache mtime)
  194. - disabled (disable the files cache, all files considered modified - rechunk)
  195. inode number: better safety, but often unstable on network filesystems
  196. Normally, detecting file modifications will take inode information into
  197. consideration to improve the reliability of file change detection.
  198. This is problematic for files located on sshfs and similar network file
  199. systems which do not provide stable inode numbers, such files will always
  200. be considered modified. You can use modes without `inode` in this case to
  201. improve performance, but reliability of change detection might be reduced.
  202. ctime vs. mtime: safety vs. speed
  203. - ctime is a rather safe way to detect changes to a file (metadata and contents)
  204. as it can not be set from userspace. But, a metadata-only change will already
  205. update the ctime, so there might be some unnecessary chunking/hashing even
  206. without content changes. Some filesystems do not support ctime (change time).
  207. E.g. doing a chown or chmod to a file will change its ctime.
  208. - mtime usually works and only updates if file contents were changed. But mtime
  209. can be arbitrarily set from userspace, e.g. to set mtime back to the same value
  210. it had before a content change happened. This can be used maliciously as well as
  211. well-meant, but in both cases mtime based cache modes can be problematic.
  212. The mount points of filesystems or filesystem snapshots should be the same for every
  213. creation of a new archive to ensure fast operation. This is because the file cache that
  214. is used to determine changed files quickly uses absolute filenames.
  215. If this is not possible, consider creating a bind mount to a stable location.
  216. The ``--progress`` option shows (from left to right) Original and (uncompressed)
  217. deduplicated size (O and U respectively), then the Number of files (N) processed so far,
  218. followed by the currently processed path.
  219. When using ``--stats``, you will get some statistics about how much data was
  220. added - the "This Archive" deduplicated size there is most interesting as that is
  221. how much your repository will grow. Please note that the "All archives" stats refer to
  222. the state after creation. Also, the ``--stats`` and ``--dry-run`` options are mutually
  223. exclusive because the data is not actually compressed and deduplicated during a dry run.
  224. For more help on include/exclude patterns, see the :ref:`borg_patterns` command output.
  225. For more help on placeholders, see the :ref:`borg_placeholders` command output.
  226. .. man NOTES
  227. The ``--exclude`` patterns are not like tar. In tar ``--exclude`` .bundler/gems will
  228. exclude foo/.bundler/gems. In borg it will not, you need to use ``--exclude``
  229. '\*/.bundler/gems' to get the same effect.
  230. In addition to using ``--exclude`` patterns, it is possible to use
  231. ``--exclude-if-present`` to specify the name of a filesystem object (e.g. a file
  232. or folder name) which, when contained within another folder, will prevent the
  233. containing folder from being backed up. By default, the containing folder and
  234. all of its contents will be omitted from the backup. If, however, you wish to
  235. only include the objects specified by ``--exclude-if-present`` in your backup,
  236. and not include any other contents of the containing folder, this can be enabled
  237. through using the ``--keep-exclude-tags`` option.
  238. The ``-x`` or ``--one-file-system`` option excludes directories, that are mountpoints (and everything in them).
  239. It detects mountpoints by comparing the device number from the output of ``stat()`` of the directory and its
  240. parent directory. Specifically, it excludes directories for which ``stat()`` reports a device number different
  241. from the device number of their parent.
  242. In general: be aware that there are directories with device number different from their parent, which the kernel
  243. does not consider a mountpoint and also the other way around.
  244. Linux examples for this are bind mounts (possibly same device number, but always a mountpoint) and ALL
  245. subvolumes of a btrfs (different device number from parent but not necessarily a mountpoint).
  246. macOS examples are the apfs mounts of a typical macOS installation.
  247. Therefore, when using ``--one-file-system``, you should double-check that the backup works as intended.
  248. .. _list_item_flags:
  249. Item flags
  250. ++++++++++
  251. ``--list`` outputs a list of all files, directories and other
  252. file system items it considered (no matter whether they had content changes
  253. or not). For each item, it prefixes a single-letter flag that indicates type
  254. and/or status of the item.
  255. If you are interested only in a subset of that output, you can give e.g.
  256. ``--filter=AME`` and it will only show regular files with A, M or E status (see
  257. below).
  258. A uppercase character represents the status of a regular file relative to the
  259. "files" cache (not relative to the repo -- this is an issue if the files cache
  260. is not used). Metadata is stored in any case and for 'A' and 'M' also new data
  261. chunks are stored. For 'U' all data chunks refer to already existing chunks.
  262. - 'A' = regular file, added (see also :ref:`a_status_oddity` in the FAQ)
  263. - 'M' = regular file, modified
  264. - 'U' = regular file, unchanged
  265. - 'C' = regular file, it changed while we backed it up
  266. - 'E' = regular file, an error happened while accessing/reading *this* file
  267. A lowercase character means a file type other than a regular file,
  268. borg usually just stores their metadata:
  269. - 'd' = directory
  270. - 'b' = block device
  271. - 'c' = char device
  272. - 'h' = regular file, hardlink (to already seen inodes)
  273. - 's' = symlink
  274. - 'f' = fifo
  275. Other flags used include:
  276. - '+' = included, item would be backed up (if not in dry-run mode)
  277. - '-' = excluded, item would not be / was not backed up
  278. - 'i' = backup data was read from standard input (stdin)
  279. - '?' = missing status code (if you see this, please file a bug report!)
  280. Reading backup data from stdin
  281. ++++++++++++++++++++++++++++++
  282. There are two methods to read from stdin. Either specify ``-`` as path and
  283. pipe directly to borg::
  284. backup-vm --id myvm --stdout | borg create REPO::ARCHIVE -
  285. Or use ``--content-from-command`` to have Borg manage the execution of the
  286. command and piping. If you do so, the first PATH argument is interpreted
  287. as command to execute and any further arguments are treated as arguments
  288. to the command::
  289. borg create --content-from-command REPO::ARCHIVE -- backup-vm --id myvm --stdout
  290. ``--`` is used to ensure ``--id`` and ``--stdout`` are **not** considered
  291. arguments to ``borg`` but rather ``backup-vm``.
  292. The difference between the two approaches is that piping to borg creates an
  293. archive even if the command piping to borg exits with a failure. In this case,
  294. **one can end up with truncated output being backed up**. Using
  295. ``--content-from-command``, in contrast, borg is guaranteed to fail without
  296. creating an archive should the command fail. The command is considered failed
  297. when it returned a non-zero exit code.
  298. Reading from stdin yields just a stream of data without file metadata
  299. associated with it, and the files cache is not needed at all. So it is
  300. safe to disable it via ``--files-cache disabled`` and speed up backup
  301. creation a bit.
  302. By default, the content read from stdin is stored in a file called 'stdin'.
  303. Use ``--stdin-name`` to change the name.
  304. Feeding all file paths from externally
  305. ++++++++++++++++++++++++++++++++++++++
  306. Usually, you give a starting path (recursion root) to borg and then borg
  307. automatically recurses, finds and backs up all fs objects contained in
  308. there (optionally considering include/exclude rules).
  309. If you need more control and you want to give every single fs object path
  310. to borg (maybe implementing your own recursion or your own rules), you can use
  311. ``--paths-from-stdin`` or ``--paths-from-command`` (with the latter, borg will
  312. fail to create an archive should the command fail).
  313. Borg supports paths with the slashdot hack to strip path prefixes here also.
  314. So, be careful not to unintentionally trigger that.