Rm
Removes files and directories from a backup.
$ hb rm [-c backupdir] [-r version] path1 path2 ...
[--secure] [--excluded]Without options, all versions of the files listed are removed from the backup. Only root or the owner of a version (the userid that created the backup version) can remove files from that version.
Pathnames must be complete as shown in a listing of the backup,
beginning with a slash. For safety reasons, wildcards cannot be used
with the rm command, but entire directories can be removed. There
is no extra confirmation when removing directories. The root path
(/) cannot be removed.
Options
-r removes files from a specific version.
--secure forces immediate packing of all arc files affected by this
rm, ignoring any pack- config options and limits, so
that deleted data blocks are physically deleted from the backup. This
is usually not necessary since rm deletes the recipe for
reconstructing a file, making it impossible to restore, but it can be
useful when confidential data is removed to ensure that even the
encrypted data blocks are removed from the backup. It is most
efficient to do all secure removals in one command line to avoid
repacking arc files more than once.
If files are removed without --secure, it is not possible
to remove them later with --secure because the recipe relating
blocks to files has been removed from the database.
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--excluded removes files in the backup that should have been
excluded according to inex.conf. This could happen because of a bug
in backup’s exclude processing, an excluded file could be listed on
the backup command line, or a file could be backed up first and then
excluded later. --excluded can be combined with other rm options.
While wildcards are not permitted on the rm command line,
they are usually present in the inex.conf file and will be used by
the --excluded option to remove files. It is recommended to run ls
--excluded -ad first to see which files will be removed.
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Space Recovery
HashBackup tries to strike a good balance between bandwidth and
storage efficiency. When half of the data in an archive file has been
deleted with rm or retain, the archive file is packed to recover
the deleted space and all destinations are updated. This is
controlled with the pack-percent-free and other pack- config
options. Check the config command pack
options for more details.