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.TH BORG-EXPORT-TAR 1 "2019-09-06" "" "borg backup tool"
.SH NAME
borg-export-tar \- Export archive contents as a tarball
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.SH SYNOPSIS
.sp
borg [common options] export\-tar [options] ARCHIVE FILE [PATH...]
.SH DESCRIPTION
.sp
This command creates a tarball from an archive.
.sp
When giving \(aq\-\(aq as the output FILE, Borg will write a tar stream to standard output.
.sp
By default (\fB\-\-tar\-filter=auto\fP) Borg will detect whether the FILE should be compressed
based on its file extension and pipe the tarball through an appropriate filter
before writing it to FILE:
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.IP \(bu 2
\&.tar.gz: gzip
.IP \(bu 2
\&.tar.bz2: bzip2
.IP \(bu 2
\&.tar.xz: xz
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.sp
Alternatively a \fB\-\-tar\-filter\fP program may be explicitly specified. It should
read the uncompressed tar stream from stdin and write a compressed/filtered
tar stream to stdout.
.sp
The generated tarball uses the GNU tar format.
.sp
export\-tar is a lossy conversion:
BSD flags, ACLs, extended attributes (xattrs), atime and ctime are not exported.
Timestamp resolution is limited to whole seconds, not the nanosecond resolution
otherwise supported by Borg.
.sp
A \fB\-\-sparse\fP option (as found in borg extract) is not supported.
.sp
By default the entire archive is extracted but a subset of files and directories
can be selected by passing a list of \fBPATHs\fP as arguments.
The file selection can further be restricted by using the \fB\-\-exclude\fP option.
.sp
See the output of the "borg help patterns" command for more help on exclude patterns.
.sp
\fB\-\-progress\fP can be slower than no progress display, since it makes one additional
pass over the archive metadata.
.SH OPTIONS
.sp
See \fIborg\-common(1)\fP for common options of Borg commands.
.SS arguments
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.TP
.B ARCHIVE
archive to export
.TP
.B FILE
output tar file. "\-" to write to stdout instead.
.TP
.B PATH
paths to extract; patterns are supported
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.SS optional arguments
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.TP
.B \-\-tar\-filter
filter program to pipe data through
.TP
.B \-\-list
output verbose list of items (files, dirs, ...)
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.SS Exclusion options
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.TP
.BI \-e \ PATTERN\fP,\fB \ \-\-exclude \ PATTERN
exclude paths matching PATTERN
.TP
.BI \-\-exclude\-from \ EXCLUDEFILE
read exclude patterns from EXCLUDEFILE, one per line
.TP
.BI \-\-pattern \ PATTERN
experimental: include/exclude paths matching PATTERN
.TP
.BI \-\-patterns\-from \ PATTERNFILE
experimental: read include/exclude patterns from PATTERNFILE, one per line
.TP
.BI \-\-strip\-components \ NUMBER
Remove the specified number of leading path elements. Paths with fewer elements will be silently skipped.
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.SH EXAMPLES
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.sp
.nf
.ft C
# export as uncompressed tar
$ borg export\-tar /path/to/repo::Monday Monday.tar

# exclude some types, compress using gzip
$ borg export\-tar /path/to/repo::Monday Monday.tar.gz \-\-exclude \(aq*.so\(aq

# use higher compression level with gzip
$ borg export\-tar \-\-tar\-filter="gzip \-9" testrepo::linux Monday.tar.gz

# export a tar, but instead of storing it on disk,
# upload it to a remote site using curl.
$ borg export\-tar /path/to/repo::Monday \- | curl \-\-data\-binary @\- https://somewhere/to/POST

# remote extraction via "tarpipe"
$ borg export\-tar /path/to/repo::Monday \- | ssh somewhere "cd extracted; tar x"
.ft P
.fi
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.SH SEE ALSO
.sp
\fIborg\-common(1)\fP
.SH AUTHOR
The Borg Collective
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