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/.