NAME¶
rdiff-backup-statistics - summarize rdiff-backup statistics files
SYNOPSIS¶
rdiff-backup-statistics [--begin-time time]
[--end-time time] [--minimum-ratio
ratio] [--null-separator] [--quiet] repository
DESCRIPTION¶
rdiff-backup-statistics reads the matching statistics files in a backup
repository made by
rdiff-backup and prints some summary statistics to
the screen. It does not alter the repository in any way.
The required argument is the pathname of the root of an rdiff-backup repository.
For instance, if you ran "rdiff-backup in out", you could later run
"rdiff-backup-statistics out".
The output has two parts. The first is simply an average of the all matching
session_statistics files. The meaning of these fields is explained in the FAQ
included in the package, and also at
http://rdiff-backup.nongnu.org/FAQ.html#statistics.
The second section lists some particularly significant files (including
directories). These files are either contain a lot of data, take up increment
space, or contain a lot of changed files. All the files that are above the
minimum ratio (default 5%) will be listed.
If a file or directory is listed, its contributions are subtracted from its
parent. That is why the percentage listed after a directory can be larger than
the percentage of its parent. Without this, the root directory would always be
the largest, and the output would be boring.
OPTIONS¶
- --begin-time time
- Do not read statistics files older than time. By
default, all statistics files will be read. time should be in the
same format taken by --restore-as-of. (See TIME FORMATS in the
rdiff-backup man page for details.)
- --end-time time
- Like --begin-time but exclude statistics files later
than time.
- --minimum-ratio ratio
- Print all directories contributing more than the given
ratio to the total. The default value is .05, or 5 percent.
- --null-separator
- Specify that the lines of the file_statistics file are
separated by nulls (\0). The default is to assume that newlines separate.
Use this switch if rdiff-backup was run with the --null-separator when
making the given repository.
- --quiet
- Suppress printing of the "Processing statistics from
session..." output lines.
BUGS¶
When aggregating multiple statistics files, some directories above (but close
to) the minimum ratio may not be displayed. For this reason, you may want to
set the minimum-ratio lower than need.
AUTHOR¶
Ben Escoto <ben@emerose.org>, based on original script by Dean Gaudet.
SEE ALSO¶
rdiff-backup(1),
python(1). The rdiff-backup web page is at
http://rdiff-backup.nongnu.org/.