borg/docs/man/borg-diff.1

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.TH BORG-DIFF 1 "2017-02-11" "" "borg backup tool"
.SH NAME
borg-diff \- Diff contents of two archives
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.SH SYNOPSIS
.sp
borg diff <options> REPO_ARCHIVE1 ARCHIVE2 PATH
.SH DESCRIPTION
.sp
This command finds differences (file contents, user/group/mode) between archives.
.sp
A repository location and an archive name must be specified for REPO_ARCHIVE1.
ARCHIVE2 is just another archive name in same repository (no repository location
allowed).
.sp
For archives created with Borg 1.1 or newer diff automatically detects whether
the archives are created with the same chunker params. If so, only chunk IDs
are compared, which is very fast.
.sp
For archives prior to Borg 1.1 chunk contents are compared by default.
If you did not create the archives with different chunker params,
pass \-\-same\-chunker\-params.
Note that the chunker params changed from Borg 0.xx to 1.0.
.sp
See the output of the "borg help patterns" command for more help on exclude patterns.
.SH OPTIONS
.sp
See \fIborg\-common(1)\fP for common options of Borg commands.
.SS arguments
.INDENT 0.0
.TP
.B REPO_ARCHIVE1
repository location and ARCHIVE1 name
.TP
.B ARCHIVE2
ARCHIVE2 name (no repository location allowed)
.TP
.B PATH
paths of items inside the archives to compare; patterns are supported
.UNINDENT
.SS optional arguments
.INDENT 0.0
.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
.B \-\-numeric\-owner
only consider numeric user and group identifiers
.TP
.B \-\-same\-chunker\-params
Override check of chunker parameters.
.TP
.B \-\-sort
Sort the output lines by file path.
.UNINDENT
.SH EXAMPLES
.INDENT 0.0
.INDENT 3.5
.sp
.nf
.ft C
$ borg init \-e=none testrepo
$ mkdir testdir
$ cd testdir
$ echo asdf > file1
$ dd if=/dev/urandom bs=1M count=4 > file2
$ touch file3
$ borg create ../testrepo::archive1 .

$ chmod a+x file1
$ echo "something" >> file2
$ borg create ../testrepo::archive2 .

$ rm file3
$ touch file4
$ borg create ../testrepo::archive3 .

$ cd ..
$ borg diff testrepo::archive1 archive2
[\-rw\-r\-\-r\-\- \-> \-rwxr\-xr\-x] file1
   +135 B    \-252 B file2

$ borg diff testrepo::archive2 archive3
added           0 B file4
removed         0 B file3

$ borg diff testrepo::archive1 archive3
[\-rw\-r\-\-r\-\- \-> \-rwxr\-xr\-x] file1
   +135 B    \-252 B file2
added           0 B file4
removed         0 B file3
.ft P
.fi
.UNINDENT
.UNINDENT
.SH SEE ALSO
.sp
\fIborg\-common(1)\fP
.SH AUTHOR
The Borg Collective
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