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314 lines
11 KiB
Groff
314 lines
11 KiB
Groff
.\" Man page generated from reStructuredText.
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.TH BORG-CREATE 1 "2017-05-17" "" "borg backup tool"
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.SH NAME
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borg-create \- Create new archive
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.SH SYNOPSIS
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.sp
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borg [common options] create <options> ARCHIVE PATH
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.SH DESCRIPTION
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.sp
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This command creates a backup archive containing all files found while recursively
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traversing all paths specified. Paths are added to the archive as they are given,
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that means if relative paths are desired, the command has to be run from the correct
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directory.
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.sp
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When giving \(aq\-\(aq as path, borg will read data from standard input and create a
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file \(aqstdin\(aq in the created archive from that data.
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.sp
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The archive will consume almost no disk space for files or parts of files that
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have already been stored in other archives.
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.sp
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The archive name needs to be unique. It must not end in \(aq.checkpoint\(aq or
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\(aq.checkpoint.N\(aq (with N being a number), because these names are used for
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checkpoints and treated in special ways.
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.sp
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In the archive name, you may use the following placeholders:
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{now}, {utcnow}, {fqdn}, {hostname}, {user} and some others.
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.sp
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To speed up pulling backups over sshfs and similar network file systems which do
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not provide correct inode information the \-\-ignore\-inode flag can be used. This
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potentially decreases reliability of change detection, while avoiding always reading
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all files on these file systems.
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.sp
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The mount points of filesystems or filesystem snapshots should be the same for every
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creation of a new archive to ensure fast operation. This is because the file cache that
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is used to determine changed files quickly uses absolute filenames.
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If this is not possible, consider creating a bind mount to a stable location.
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.sp
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The \-\-progress option shows (from left to right) Original, Compressed and Deduplicated
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(O, C and D, respectively), then the Number of files (N) processed so far, followed by
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the currently processed path.
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.sp
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See the output of the "borg help patterns" command for more help on exclude patterns.
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See the output of the "borg help placeholders" command for more help on placeholders.
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.SH OPTIONS
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.sp
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See \fIborg\-common(1)\fP for common options of Borg commands.
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.SS arguments
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.INDENT 0.0
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.TP
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.B ARCHIVE
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name of archive to create (must be also a valid directory name)
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.TP
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.B PATH
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paths to archive
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.UNINDENT
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.SS optional arguments
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.INDENT 0.0
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.TP
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.B \-n\fP,\fB \-\-dry\-run
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do not create a backup archive
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.TP
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.B \-s\fP,\fB \-\-stats
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print statistics for the created archive
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.TP
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.B \-\-list
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output verbose list of items (files, dirs, ...)
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.TP
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.BI \-\-filter \ STATUSCHARS
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only display items with the given status characters
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.TP
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.B \-\-json
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output stats as JSON (implies \-\-stats)
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.UNINDENT
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.SS Exclusion options
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.INDENT 0.0
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.TP
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.BI \-e \ PATTERN\fP,\fB \ \-\-exclude \ PATTERN
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exclude paths matching PATTERN
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.TP
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.BI \-\-exclude\-from \ EXCLUDEFILE
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read exclude patterns from EXCLUDEFILE, one per line
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.TP
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.B \-\-exclude\-caches
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exclude directories that contain a CACHEDIR.TAG file (\fI\%http://www.brynosaurus.com/cachedir/spec.html\fP)
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.TP
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.BI \-\-exclude\-if\-present \ NAME
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exclude directories that are tagged by containing a filesystem object with the given NAME
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.TP
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.B \-\-keep\-exclude\-tags\fP,\fB \-\-keep\-tag\-files
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if tag objects are specified with \-\-exclude\-if\-present, don\(aqt omit the tag objects themselves from the backup archive
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.TP
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.BI \-\-pattern \ PATTERN
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include/exclude paths matching PATTERN
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.TP
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.BI \-\-patterns\-from \ PATTERNFILE
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read include/exclude patterns from PATTERNFILE, one per line
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.UNINDENT
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.SS Filesystem options
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.INDENT 0.0
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.TP
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.B \-x\fP,\fB \-\-one\-file\-system
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stay in the same file system and do not store mount points of other file systems
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.TP
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.B \-\-numeric\-owner
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only store numeric user and group identifiers
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.TP
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.B \-\-noatime
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do not store atime into archive
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.TP
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.B \-\-noctime
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do not store ctime into archive
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.TP
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.B \-\-ignore\-inode
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ignore inode data in the file metadata cache used to detect unchanged files.
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.TP
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.B \-\-read\-special
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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.
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.UNINDENT
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.SS Archive options
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.INDENT 0.0
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.TP
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.BI \-\-comment \ COMMENT
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add a comment text to the archive
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.TP
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.BI \-\-timestamp \ TIMESTAMP
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manually specify the archive creation date/time (UTC, yyyy\-mm\-ddThh:mm:ss format). alternatively, give a reference file/directory.
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.TP
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.BI \-c \ SECONDS\fP,\fB \ \-\-checkpoint\-interval \ SECONDS
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write checkpoint every SECONDS seconds (Default: 1800)
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.TP
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.BI \-\-chunker\-params \ PARAMS
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specify the chunker parameters (CHUNK_MIN_EXP, CHUNK_MAX_EXP, HASH_MASK_BITS, HASH_WINDOW_SIZE). default: 19,23,21,4095
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.TP
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.BI \-C \ COMPRESSION\fP,\fB \ \-\-compression \ COMPRESSION
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select compression algorithm, see the output of the "borg help compression" command for details.
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.UNINDENT
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.SH EXAMPLES
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.INDENT 0.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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# Backup ~/Documents into an archive named "my\-documents"
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$ borg create /path/to/repo::my\-documents ~/Documents
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# same, but list all files as we process them
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$ borg create \-\-list /path/to/repo::my\-documents ~/Documents
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# Backup ~/Documents and ~/src but exclude pyc files
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$ borg create /path/to/repo::my\-files \e
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~/Documents \e
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~/src \e
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\-\-exclude \(aq*.pyc\(aq
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# Backup home directories excluding image thumbnails (i.e. only
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# /home/*/.thumbnails is excluded, not /home/*/*/.thumbnails)
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$ borg create /path/to/repo::my\-files /home \e
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\-\-exclude \(aqre:^/home/[^/]+/\e.thumbnails/\(aq
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# Do the same using a shell\-style pattern
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$ borg create /path/to/repo::my\-files /home \e
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\-\-exclude \(aqsh:/home/*/.thumbnails\(aq
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# Backup the root filesystem into an archive named "root\-YYYY\-MM\-DD"
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# use zlib compression (good, but slow) \- default is lz4 (fast, low compression ratio)
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$ borg create \-C zlib,6 /path/to/repo::root\-{now:%Y\-%m\-%d} / \-\-one\-file\-system
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# Backup a remote host locally ("pull" style) using sshfs
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$ mkdir sshfs\-mount
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$ sshfs root@example.com:/ sshfs\-mount
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$ cd sshfs\-mount
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$ borg create /path/to/repo::example.com\-root\-{now:%Y\-%m\-%d} .
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$ cd ..
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$ fusermount \-u sshfs\-mount
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# Make a big effort in fine granular deduplication (big chunk management
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# overhead, needs a lot of RAM and disk space, see formula in internals
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# docs \- same parameters as borg < 1.0 or attic):
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$ borg create \-\-chunker\-params 10,23,16,4095 /path/to/repo::small /smallstuff
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# Backup a raw device (must not be active/in use/mounted at that time)
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$ dd if=/dev/sdx bs=10M | borg create /path/to/repo::my\-sdx \-
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# No compression (default)
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$ borg create /path/to/repo::arch ~
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# Super fast, low compression
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$ borg create \-\-compression lz4 /path/to/repo::arch ~
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# Less fast, higher compression (N = 0..9)
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$ borg create \-\-compression zlib,N /path/to/repo::arch ~
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# Even slower, even higher compression (N = 0..9)
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$ borg create \-\-compression lzma,N /path/to/repo::arch ~
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# Use short hostname, user name and current time in archive name
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$ borg create /path/to/repo::{hostname}\-{user}\-{now} ~
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# Similar, use the same datetime format as borg 1.1 will have as default
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$ borg create /path/to/repo::{hostname}\-{user}\-{now:%Y\-%m\-%dT%H:%M:%S} ~
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# As above, but add nanoseconds
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$ borg create /path/to/repo::{hostname}\-{user}\-{now:%Y\-%m\-%dT%H:%M:%S.%f} ~
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# Backing up relative paths by moving into the correct directory first
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$ cd /home/user/Documents
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# The root directory of the archive will be "projectA"
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$ borg create /path/to/repo::daily\-projectA\-{now:%Y\-%m\-%d} projectA
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.SH NOTES
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.sp
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The \-\-exclude patterns are not like tar. In tar \-\-exclude .bundler/gems will
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exclude foo/.bundler/gems. In borg it will not, you need to use \-\-exclude
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\(aq*/.bundler/gems\(aq to get the same effect. See \fBborg help patterns\fP for
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more information.
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.sp
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In addition to using \fB\-\-exclude\fP patterns, it is possible to use
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\fB\-\-exclude\-if\-present\fP to specify the name of a filesystem object (e.g. a file
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or folder name) which, when contained within another folder, will prevent the
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containing folder from being backed up. By default, the containing folder and
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all of its contents will be omitted from the backup. If, however, you wish to
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only include the objects specified by \fB\-\-exclude\-if\-present\fP in your backup,
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and not include any other contents of the containing folder, this can be enabled
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through using the \fB\-\-keep\-exclude\-tags\fP option.
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.SS Item flags
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.sp
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\fB\-\-list\fP outputs a list of all files, directories and other
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file system items it considered (no matter whether they had content changes
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or not). For each item, it prefixes a single\-letter flag that indicates type
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and/or status of the item.
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.sp
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If you are interested only in a subset of that output, you can give e.g.
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\fB\-\-filter=AME\fP and it will only show regular files with A, M or E status (see
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below).
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.sp
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A uppercase character represents the status of a regular file relative to the
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"files" cache (not relative to the repo \-\- this is an issue if the files cache
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is not used). Metadata is stored in any case and for \(aqA\(aq and \(aqM\(aq also new data
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chunks are stored. For \(aqU\(aq all data chunks refer to already existing chunks.
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.INDENT 0.0
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.IP \(bu 2
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\(aqA\(aq = regular file, added (see also \fIa_status_oddity\fP in the FAQ)
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.IP \(bu 2
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\(aqM\(aq = regular file, modified
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.IP \(bu 2
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\(aqU\(aq = regular file, unchanged
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.IP \(bu 2
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\(aqE\(aq = regular file, an error happened while accessing/reading \fIthis\fP file
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.UNINDENT
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.sp
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A lowercase character means a file type other than a regular file,
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borg usually just stores their metadata:
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.INDENT 0.0
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.IP \(bu 2
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\(aqd\(aq = directory
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.IP \(bu 2
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\(aqb\(aq = block device
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.IP \(bu 2
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\(aqc\(aq = char device
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.IP \(bu 2
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\(aqh\(aq = regular file, hardlink (to already seen inodes)
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.IP \(bu 2
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\(aqs\(aq = symlink
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.IP \(bu 2
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\(aqf\(aq = fifo
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.UNINDENT
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.sp
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Other flags used include:
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.INDENT 0.0
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.IP \(bu 2
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\(aqi\(aq = backup data was read from standard input (stdin)
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.IP \(bu 2
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\(aq\-\(aq = dry run, item was \fInot\fP backed up
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.IP \(bu 2
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\(aqx\(aq = excluded, item was \fInot\fP backed up
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.IP \(bu 2
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\(aq?\(aq = missing status code (if you see this, please file a bug report!)
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.UNINDENT
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.SH SEE ALSO
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.sp
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\fIborg\-common(1)\fP, \fIborg\-delete(1)\fP, \fIborg\-prune(1)\fP, \fIborg\-check(1)\fP, \fIborg\-patterns(1)\fP, \fIborg\-placeholders(1)\fP, \fIborg\-compression(1)\fP
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.SH AUTHOR
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The Borg Collective
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.\" Generated by docutils manpage writer.
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