bupstash-get(1)

SYNOPSIS

Get data from a bupstash repository.

bupstash get [OPTIONS] QUERY...

DESCRIPTION

bupstash get fetches and decrypts data stored in a bupstash repository, sending it to stdout. If the requested item was saved as a directory, the command converts it into a tar stream.

The item that is fetched is chosen based on a simple query against the tags specified when saving data with bupstash put.

QUERY LANGUAGE

For full documentation on the query language, see bupstash-query-language(7).

QUERY CACHING

The get command uses the same query caching mechanisms as bupstash-list(1), check that page for more information on the query cache.

SPARSE FILES

When getting a directory as a tarball sparse files are not treated specially, to restore sparse files while preserving the file holes use bupstash restore instead.

OPTIONS

    •   -r, --repository REPO: The repository to connect to, , may be of the form ssh://$SERVER/$PATH for remote repositories if ssh access is configured. If not specified, is set to BUPSTASH_REPOSITORY.

    •   -k, --key KEY: Key that will be used to decrypt data and metadata. If not set, defaults to BUPSTASH_KEY.

    •   --pick PATH: Fetch an individual file or sub-directory from a snapshot.

    •   --query-cache PATH: Path to the query-cache file, defaults to one of the following, in order, provided the appropriate environment variables are set, $BUPSTASH_QUERY_CACHE, $XDG_CACHE_HOME/.cache/bupstash/bupstash.qcache or $HOME/.cache/bupstash/bupstash.qcache.

    •   --utc-timestamps: Display and search against timestamps in utc time instead of local time.

    •   --no-progress: Suppress progress indicators (Progress indicators are also suppressed when stderr is not an interactive terminal).

    •   -q, --quiet: Be quiet, implies --no-progress.

ENVIRONMENT

    •   BUPSTASH_REPOSITORY: The repository to connect to. May be of the form ssh://$SERVER/$PATH for remote repositories if ssh access is configured.

    •   BUPSTASH_REPOSITORY_COMMAND: A command to run to connect to an instance of bupstash-serve(1). This allows more complex connections to the repository for less common use cases.

    •   BUPSTASH_KEY: Path to the key that will be used for decrypting data and metadata.

    •   BUPSTASH_KEY_COMMAND: A command to run that must print the key data, can be used instead of BUPSTASH_KEY to fetch the key from arbitrary locations such as the network or other secret storage.

    •   BUPSTASH_QUERY_CACHE: Path to the query cache file to use.

EXAMPLES

  Get an item with a specific id

    $ bupstash get id=14ebd2073b258b1f55c5bbc889c49db4 > ./data.file

  Get an item by name and timestamp

    $ bupstash get name=backup.tar and timestamp=2020/19/* > ./restore.tar

  Get a file or sub-tar from a directory snapshot

    $ bupstash get --pick=path/to/file.txt id=$id
    $ bupstash get --pick=path/to/dir id=$id | tar ...

  Get a tarball

The builtin directory put creates a tarball from a directory, so to extract it we use tar.

    # Snapshot a directory.
    $ id=$(bupstash put ./data)
    # Fetch the contents of a snapshot and extract the contents with tar
    $ mkdir restore
    $ bupstash get id=$id | tar -C ./restore -xvf -

SEE ALSO

bupstash(1), bupstash-put(1), bupstash-list(1), bupstash-restore(1), bupstash-rm(1), bupstash-keyfiles(7), bupstash-query-language(7)