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docs/frontends/CLI.rst: changes to formatting (mainly putting commands and filenames in monospace), and to command syntax to reflect that DIRCAP/... is accepted. Clarify the syntax of 'tahoe put' and other minor corrections. Tahoe -> Tahoe-LAFS.
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@ -1,6 +1,6 @@
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======================
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The Tahoe CLI commands
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======================
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===========================
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The Tahoe-LAFS CLI commands
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===========================
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1. `Overview`_
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2. `CLI Command Overview`_
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@ -18,20 +18,21 @@ The Tahoe CLI commands
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Overview
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========
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Tahoe provides a single executable named "``tahoe``", which can be used to
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Tahoe-LAFS provides a single executable named "``tahoe``", which can be used to
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create and manage client/server nodes, manipulate the filesystem, and perform
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several debugging/maintenance tasks.
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This executable lives in the source tree at "``bin/tahoe``". Once you've done a
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build (by running "make"), ``bin/tahoe`` can be run in-place: if it discovers
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that it is being run from within a Tahoe source tree, it will modify sys.path
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as necessary to use all the source code and dependent libraries contained in
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that tree.
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build (by running "``make``" or "``python setup.py build``"), ``bin/tahoe`` can
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be run in-place: if it discovers that it is being run from within a Tahoe-LAFS
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source tree, it will modify ``sys.path`` as necessary to use all the source code
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and dependent libraries contained in that tree.
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If you've installed Tahoe (using "``make install``", or by installing a binary
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package), then the tahoe executable will be available somewhere else, perhaps
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in ``/usr/bin/tahoe``. In this case, it will use your platform's normal
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PYTHONPATH search paths to find the tahoe code and other libraries.
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If you've installed Tahoe-LAFS (using "``make install``" or
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"``python setup.py install``", or by installing a binary package), then the
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``tahoe`` executable will be available somewhere else, perhaps in
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``/usr/bin/tahoe``. In this case, it will use your platform's normal
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PYTHONPATH search path to find the Tahoe-LAFS code and other libraries.
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CLI Command Overview
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@ -47,7 +48,7 @@ To get a list of all commands, just run "``tahoe``" with no additional
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arguments. "``tahoe --help``" might also provide something useful.
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Running "``tahoe --version``" will display a list of version strings, starting
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with the "allmydata" module (which contains the majority of the Tahoe
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with the "allmydata" module (which contains the majority of the Tahoe-LAFS
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functionality) and including versions for a number of dependent libraries,
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like Twisted, Foolscap, pycryptopp, and zfec.
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@ -60,34 +61,35 @@ creates a new directory and populates it with files that will allow the
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"``tahoe start``" command to use it later on. This command creates nodes that
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have client functionality (upload/download files), web API services
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(controlled by the 'webport' file), and storage services (unless
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"--no-storage" is specified).
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``--no-storage`` is specified).
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NODEDIR defaults to ~/.tahoe/ , and newly-created nodes default to
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NODEDIR defaults to ``~/.tahoe/`` , and newly-created nodes default to
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publishing a web server on port 3456 (limited to the loopback interface, at
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127.0.0.1, to restrict access to other programs on the same host). All of the
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other "``tahoe``" subcommands use corresponding defaults.
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other "``tahoe``" subcommands use corresponding defaults (with the exception
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that "``tahoe run``" defaults to running a node in the current directory).
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"``tahoe create-client [NODEDIR]``" creates a node with no storage service.
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That is, it behaves like "``tahoe create-node --no-storage [NODEDIR]``".
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(This is a change from versions prior to 1.6.0.)
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(This is a change from versions prior to v1.6.0.)
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"``tahoe create-introducer [NODEDIR]``" is used to create the Introducer node.
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This node provides introduction services and nothing else. When started, this
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node will produce an introducer.furl, which should be published to all
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node will produce an ``introducer.furl`` file, which should be published to all
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clients.
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"``tahoe create-key-generator [NODEDIR]``" is used to create a special
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"key-generation" service, which allows a client to offload their RSA key
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generation to a separate process. Since RSA key generation takes several
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seconds, and must be done each time a directory is created, moving it to a
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separate process allows the first process (perhaps a busy wapi server) to
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separate process allows the first process (perhaps a busy webapi server) to
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continue servicing other requests. The key generator exports a FURL that can
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be copied into a node to enable this functionality.
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"``tahoe run [NODEDIR]``" will start a previously-created node in the foreground.
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"``tahoe start [NODEDIR]``" will launch a previously-created node. It will launch
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the node into the background, using the standard Twisted "twistd"
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"``tahoe start [NODEDIR]``" will launch a previously-created node. It will
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launch the node into the background, using the standard Twisted "``twistd``"
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daemon-launching tool. On some platforms (including Windows) this command is
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unable to run a daemon in the background; in that case it behaves in the
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same way as "``tahoe run``".
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@ -102,23 +104,23 @@ start using their changes.
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Filesystem Manipulation
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=======================
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These commands let you exmaine a Tahoe filesystem, providing basic
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These commands let you exmaine a Tahoe-LAFS filesystem, providing basic
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list/upload/download/delete/rename/mkdir functionality. They can be used as
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primitives by other scripts. Most of these commands are fairly thin wrappers
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around wapi calls.
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around webapi calls, which are described in `<webapi.rst>`_.
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By default, all filesystem-manipulation commands look in ~/.tahoe/ to figure
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out which Tahoe node they should use. When the CLI command uses wapi calls,
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it will use ~/.tahoe/node.url for this purpose: a running Tahoe node that
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provides a wapi port will write its URL into this file. If you want to use
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a node on some other host, just create ~/.tahoe/ and copy that node's wapi
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URL into this file, and the CLI commands will contact that node instead of a
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local one.
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By default, all filesystem-manipulation commands look in ``~/.tahoe/`` to figure
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out which Tahoe-LAFS node they should use. When the CLI command makes webapi
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calls, it will use ``~/.tahoe/node.url`` for this purpose: a running Tahoe-LAFS
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node that provides a webapi port will write its URL into this file. If you want
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to use a node on some other host, just create ``~/.tahoe/`` and copy that node's
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webapi URL into this file, and the CLI commands will contact that node instead
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of a local one.
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These commands also use a table of "aliases" to figure out which directory
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they ought to use a starting point. This is explained in more detail below.
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As of Tahoe v1.7 (v1.7.1 on Windows), passing non-ASCII characters to the
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As of Tahoe-LAFS v1.7 (v1.7.1 on Windows), passing non-ASCII characters to the
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CLI should work. On Unix, the command-line arguments are assumed to use the
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character encoding specified by the current locale.
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@ -135,50 +137,52 @@ together into a directed graph.
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To use this collection of files and directories, you need to choose a
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starting point: some specific directory that we will refer to as a
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"starting directory". For a given starting directory, the "``ls
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[STARTING_DIR]:``" command would list the contents of this directory,
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the "``ls [STARTING_DIR]:dir1``" command would look inside this directory
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for a child named "dir1" and list its contents, "``ls
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[STARTING_DIR]:dir1/subdir2``" would look two levels deep, etc.
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"starting directory". For a given starting directory, the
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"``ls [STARTING_DIR]``" command would list the contents of this directory,
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the "``ls [STARTING_DIR]/dir1``" command would look inside this directory
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for a child named "dir1" and list its contents,
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"``ls [STARTING_DIR]/dir1/subdir2``" would look two levels deep, etc.
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Note that there is no real global "root" directory, but instead each
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starting directory provides a different, possibly overlapping
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perspective on the graph of files and directories.
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Each tahoe node remembers a list of starting points, named "aliases",
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in a file named ~/.tahoe/private/aliases . These aliases are short UTF-8
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encoded strings that stand in for a directory read- or write- cap. If
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you use the command line "``ls``" without any "[STARTING_DIR]:" argument,
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then it will use the default alias, which is "tahoe", therefore "``tahoe
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ls``" has the same effect as "``tahoe ls tahoe:``". The same goes for the
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other commands which can reasonably use a default alias: get, put,
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mkdir, mv, and rm.
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Each Tahoe-LAFS node remembers a list of starting points, called "aliases",
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which are short Unicode strings that stand in for a directory read- or
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write- cap. They are stored (encoded as UTF-8) in the file
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``NODEDIR/private/aliases`` . If you use the command line "``tahoe ls``"
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without any "[STARTING_DIR]" argument, then it will use the default alias,
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which is ``tahoe:``, therefore "``tahoe ls``" has the same effect as
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"``tahoe ls tahoe:``". The same goes for the other commands that can
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reasonably use a default alias: ``get``, ``put``, ``mkdir``, ``mv``, and
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``rm``.
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For backwards compatibility with Tahoe-1.0, if the "tahoe": alias is not
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found in ~/.tahoe/private/aliases, the CLI will use the contents of
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~/.tahoe/private/root_dir.cap instead. Tahoe-1.0 had only a single starting
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point, and stored it in this root_dir.cap file, so Tahoe-1.1 will use it if
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necessary. However, once you've set a "tahoe:" alias with "``tahoe set-alias``",
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that will override anything in the old root_dir.cap file.
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For backwards compatibility with Tahoe-LAFS v1.0, if the ``tahoe:`` alias
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is not found in ``~/.tahoe/private/aliases``, the CLI will use the contents
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of ``~/.tahoe/private/root_dir.cap`` instead. Tahoe-LAFS v1.0 had only a
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single starting point, and stored it in this ``root_dir.cap`` file, so v1.1
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and later will use it if necessary. However, once you've set a ``tahoe:``
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alias with "``tahoe set-alias``", that will override anything in the old
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``root_dir.cap`` file.
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The Tahoe CLI commands use the same filename syntax as scp and rsync
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-- an optional "alias:" prefix, followed by the pathname or filename.
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Some commands (like "tahoe cp") use the lack of an alias to mean that
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you want to refer to a local file, instead of something from the tahoe
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virtual filesystem. [TODO] Another way to indicate this is to start
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The Tahoe-LAFS CLI commands use the same path syntax as ``scp`` and
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``rsync`` -- an optional ``ALIAS:`` prefix, followed by the pathname or
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filename. Some commands (like "``tahoe cp``") use the lack of an alias to
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mean that you want to refer to a local file, instead of something from the
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Tahoe-LAFS filesystem. [TODO] Another way to indicate this is to start
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the pathname with a dot, slash, or tilde.
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When you're dealing a single starting directory, the "tahoe:" alias is
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When you're dealing a single starting directory, the ``tahoe:`` alias is
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all you need. But when you want to refer to something that isn't yet
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attached to the graph rooted at that starting directory, you need to
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refer to it by its capability. The way to do that is either to use its
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capability directory as an argument on the command line, or to add an
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alias to it, with the "tahoe add-alias" command. Once you've added an
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alias to it, with the "``tahoe add-alias``" command. Once you've added an
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alias, you can use that alias as an argument to commands.
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The best way to get started with Tahoe is to create a node, start it, then
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use the following command to create a new directory and set it as your
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"tahoe:" alias::
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The best way to get started with Tahoe-LAFS is to create a node, start it,
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then use the following command to create a new directory and set it as your
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``tahoe:`` alias::
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tahoe create-alias tahoe
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@ -189,21 +193,21 @@ you've just created.
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SECURITY NOTE: For users of shared systems
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``````````````````````````````````````````
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Another way to achieve the same effect as the above "tahoe create-alias"
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Another way to achieve the same effect as the above "``tahoe create-alias``"
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command is::
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tahoe add-alias tahoe `tahoe mkdir`
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However, command-line arguments are visible to other users (through the
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'ps' command, or the Windows Process Explorer tool), so if you are using a
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tahoe node on a shared host, your login neighbors will be able to see (and
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capture) any directory caps that you set up with the "``tahoe add-alias``"
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command.
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``ps`` command or ``/proc`` filesystem, or the Windows Process Explorer tool),
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so if you are using a Tahoe-LAFS node on a shared host, your login neighbors
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will be able to see (and capture) any directory caps that you set up with the
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"``tahoe add-alias``" command.
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The "``tahoe create-alias``" command avoids this problem by creating a new
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directory and putting the cap into your aliases file for you. Alternatively,
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you can edit the NODEDIR/private/aliases file directly, by adding a line like
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this::
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you can edit the ``NODEDIR/private/aliases`` file directly, by adding a line
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like this::
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fun: URI:DIR2:ovjy4yhylqlfoqg2vcze36dhde:4d4f47qko2xm5g7osgo2yyidi5m4muyo2vjjy53q4vjju2u55mfa
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@ -211,69 +215,65 @@ By entering the dircap through the editor, the command-line arguments are
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bypassed, and other users will not be able to see them. Once you've added the
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alias, no other secrets are passed through the command line, so this
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vulnerability becomes less significant: they can still see your filenames and
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other arguments you type there, but not the caps that Tahoe uses to permit
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other arguments you type there, but not the caps that Tahoe-LAFS uses to permit
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access to your files and directories.
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Command Syntax Summary
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----------------------
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tahoe add-alias alias cap
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``tahoe add-alias ALIAS DIRCAP``
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tahoe create-alias alias
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``tahoe create-alias ALIAS``
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tahoe list-aliases
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``tahoe list-aliases``
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tahoe mkdir
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``tahoe mkdir``
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tahoe mkdir [alias:]path
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``tahoe mkdir PATH``
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tahoe ls [alias:][path]
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``tahoe ls [PATH]``
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tahoe webopen [alias:][path]
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``tahoe webopen [PATH]``
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tahoe put [--mutable] [localfrom:-]
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``tahoe put [--mutable] [FROMLOCAL|-]``
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tahoe put [--mutable] [localfrom:-] [alias:]to
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``tahoe put [--mutable] FROMLOCAL|- TOPATH``
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tahoe put [--mutable] [localfrom:-] [alias:]subdir/to
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``tahoe put [FROMLOCAL|-] mutable-file-writecap``
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tahoe put [--mutable] [localfrom:-] dircap:to
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``tahoe get FROMPATH [TOLOCAL|-]``
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tahoe put [--mutable] [localfrom:-] dircap:./subdir/to
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``tahoe cp [-r] FROMPATH TOPATH``
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tahoe put [localfrom:-] mutable-file-writecap
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``tahoe rm PATH``
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tahoe get [alias:]from [localto:-]
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``tahoe mv FROMPATH TOPATH``
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tahoe cp [-r] [alias:]frompath [alias:]topath
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``tahoe ln FROMPATH TOPATH``
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tahoe rm [alias:]what
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``tahoe backup FROMLOCAL TOPATH``
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tahoe mv [alias:]from [alias:]to
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In these summaries, ``PATH``, ``TOPATH`` or ``FROMPATH`` can be one of::
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tahoe ln [alias:]from [alias:]to
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* ``[SUBDIRS/]FILENAME`` for a path relative to the default ``tahoe:`` alias;
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* ``ALIAS:[SUBDIRS/]FILENAME`` for a path relative to another alias;
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* ``DIRCAP/[SUBDIRS/]FILENAME`` or ``DIRCAP:./[SUBDIRS/]FILENAME`` for a path relative to a directory cap.
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tahoe backup localfrom [alias:]to
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Command Examples
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----------------
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``tahoe mkdir``
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This creates a new empty unlinked directory, and prints its write-cap to
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stdout. The new directory is not attached to anything else.
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``tahoe add-alias fun DIRCAP``
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``tahoe add-alias ALIAS DIRCAP``
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An example would be::
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tahoe add-alias fun URI:DIR2:ovjy4yhylqlfoqg2vcze36dhde:4d4f47qko2xm5g7osgo2yyidi5m4muyo2vjjy53q4vjju2u55mfa
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This creates an alias "fun:" and configures it to use the given directory
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cap. Once this is done, "tahoe ls fun:" will list the contents of this
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directory. Use "tahoe add-alias tahoe DIRCAP" to set the contents of the
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default "tahoe:" alias.
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This creates an alias ``fun:`` and configures it to use the given directory
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cap. Once this is done, "``tahoe ls fun:``" will list the contents of this
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directory. Use "``tahoe add-alias tahoe DIRCAP``" to set the contents of the
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default ``tahoe:`` alias.
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``tahoe create-alias fun``
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@ -283,12 +283,17 @@ Command Examples
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This displays a table of all configured aliases.
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``tahoe mkdir``
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This creates a new empty unlinked directory, and prints its write-cap to
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stdout. The new directory is not attached to anything else.
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``tahoe mkdir subdir``
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``tahoe mkdir /subdir``
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This both create a new empty directory and attaches it to your root with the
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name "subdir".
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This creates a new empty directory and attaches it below the root directory
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of the default ``tahoe:`` alias with the name "``subdir``".
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``tahoe ls``
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@ -298,7 +303,7 @@ Command Examples
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``tahoe ls tahoe:/``
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All four list the root directory of your personal virtual filesystem.
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All four list the root directory of the default ``tahoe:`` alias.
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``tahoe ls subdir``
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@ -314,8 +319,9 @@ Command Examples
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This uses the python 'webbrowser' module to cause a local web browser to
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open to the web page for the given directory. This page offers interfaces to
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add, dowlonad, rename, and delete files in the directory. If not given an
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alias or path, opens "tahoe:", the root dir of the default alias.
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add, download, rename, and delete files in the directory. If no alias or
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path is given, this command opens the root directory of the default
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``tahoe:`` alias.
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``tahoe put file.txt``
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@ -340,8 +346,8 @@ Command Examples
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``tahoe put file.txt tahoe:uploaded.txt``
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These upload the local file and add it to your root with the name
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"uploaded.txt"
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These upload the local file and add it to your ``tahoe:`` root with the name
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"``uploaded.txt``".
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``tahoe put file.txt subdir/foo.txt``
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@ -349,24 +355,27 @@ Command Examples
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``tahoe put file.txt tahoe:subdir/foo.txt``
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``tahoe put file.txt DIRCAP/foo.txt``
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or
|
||||
``tahoe put file.txt DIRCAP:./foo.txt``
|
||||
|
||||
``tahoe put file.txt DIRCAP/subdir/foo.txt``
|
||||
or
|
||||
``tahoe put file.txt DIRCAP:./subdir/foo.txt``
|
||||
|
||||
These upload the named file and attach them to a subdirectory of the given
|
||||
root directory, under the name "foo.txt". Note that to use a directory
|
||||
write-cap instead of an alias, you must use ":./" as a separator, rather
|
||||
than ":", to help the CLI parser figure out where the dircap ends. When the
|
||||
source file is named "-", the contents are taken from stdin.
|
||||
root directory, under the name "``foo.txt``". When a directory write-cap is
|
||||
given, you can use either ``/`` or ``:./`` to separate it from the following
|
||||
path. When the source file is named "``-``", the contents are taken from stdin.
|
||||
|
||||
``tahoe put file.txt --mutable``
|
||||
|
||||
Create a new mutable file, fill it with the contents of file.txt, and print
|
||||
the new write-cap to stdout.
|
||||
Create a new mutable file, fill it with the contents of ``file.txt``, and
|
||||
print the new write-cap to stdout.
|
||||
|
||||
``tahoe put file.txt MUTABLE-FILE-WRITECAP``
|
||||
|
||||
Replace the contents of the given mutable file with the contents of file.txt
|
||||
Replace the contents of the given mutable file with the contents of ``file.txt``
|
||||
and prints the same write-cap to stdout.
|
||||
|
||||
``tahoe cp file.txt tahoe:uploaded.txt``
|
||||
@ -377,8 +386,8 @@ Command Examples
|
||||
|
||||
``tahoe cp ./file.txt tahoe:``
|
||||
|
||||
These upload the local file and add it to your root with the name
|
||||
"uploaded.txt".
|
||||
These upload the local file and add it to your ``tahoe:`` root with the name
|
||||
"``uploaded.txt``".
|
||||
|
||||
``tahoe cp tahoe:uploaded.txt downloaded.txt``
|
||||
|
||||
@ -388,25 +397,25 @@ Command Examples
|
||||
|
||||
``tahoe cp tahoe:uploaded.txt ~/downloaded.txt``
|
||||
|
||||
This downloads the named file from your tahoe root, and puts the result on
|
||||
This downloads the named file from your ``tahoe:`` root, and puts the result on
|
||||
your local filesystem.
|
||||
|
||||
``tahoe cp tahoe:uploaded.txt fun:stuff.txt``
|
||||
|
||||
This copies a file from your tahoe root to a different virtual directory,
|
||||
set up earlier with "tahoe add-alias fun DIRCAP".
|
||||
This copies a file from your ``tahoe:`` root to a different directory, set up
|
||||
earlier with "``tahoe add-alias fun DIRCAP``" or "``tahoe create-alias fun``".
|
||||
|
||||
``tahoe rm uploaded.txt``
|
||||
|
||||
``tahoe rm tahoe:uploaded.txt``
|
||||
|
||||
This deletes a file from your tahoe root.
|
||||
This deletes a file from your ``tahoe:`` root.
|
||||
|
||||
``tahoe mv uploaded.txt renamed.txt``
|
||||
|
||||
``tahoe mv tahoe:uploaded.txt tahoe:renamed.txt``
|
||||
|
||||
These rename a file within your tahoe root directory.
|
||||
These rename a file within your ``tahoe:`` root directory.
|
||||
|
||||
``tahoe mv uploaded.txt fun:``
|
||||
|
||||
@ -414,17 +423,18 @@ Command Examples
|
||||
|
||||
``tahoe mv tahoe:uploaded.txt fun:uploaded.txt``
|
||||
|
||||
These move a file from your tahoe root directory to the virtual directory
|
||||
set up earlier with "tahoe add-alias fun DIRCAP"
|
||||
These move a file from your ``tahoe:`` root directory to the directory
|
||||
set up earlier with "``tahoe add-alias fun DIRCAP``" or
|
||||
"``tahoe create-alias fun``".
|
||||
|
||||
``tahoe backup ~ work:backups``
|
||||
|
||||
This command performs a full versioned backup of every file and directory
|
||||
underneath your "~" home directory, placing an immutable timestamped
|
||||
snapshot in e.g. work:backups/Archives/2009-02-06_04:00:05Z/ (note that the
|
||||
timestamp is in UTC, hence the "Z" suffix), and a link to the latest
|
||||
underneath your "``~``" home directory, placing an immutable timestamped
|
||||
snapshot in e.g. ``work:backups/Archives/2009-02-06_04:00:05Z/`` (note that
|
||||
the timestamp is in UTC, hence the "Z" suffix), and a link to the latest
|
||||
snapshot in work:backups/Latest/ . This command uses a small SQLite database
|
||||
known as the "backupdb", stored in ~/.tahoe/private/backupdb.sqlite, to
|
||||
known as the "backupdb", stored in ``~/.tahoe/private/backupdb.sqlite``, to
|
||||
remember which local files have been backed up already, and will avoid
|
||||
uploading files that have already been backed up. It compares timestamps and
|
||||
filesizes when making this comparison. It also re-uses existing directories
|
||||
@ -432,27 +442,27 @@ Command Examples
|
||||
number of directories created.
|
||||
|
||||
If you reconfigure your client node to switch to a different grid, you
|
||||
should delete the stale backupdb.sqlite file, to force "tahoe backup" to
|
||||
upload all files to the new grid.
|
||||
should delete the stale backupdb.sqlite file, to force "``tahoe backup``"
|
||||
to upload all files to the new grid.
|
||||
|
||||
``tahoe backup --exclude=*~ ~ work:backups``
|
||||
|
||||
Same as above, but this time the backup process will ignore any
|
||||
filename that will end with '~'. '--exclude' will accept any standard
|
||||
unix shell-style wildcards, have a look at
|
||||
http://docs.python.org/library/fnmatch.html for a more detailed
|
||||
reference. You may give multiple '--exclude' options. Please pay
|
||||
attention that the pattern will be matched against any level of the
|
||||
directory tree, it's still impossible to specify absolute path exclusions.
|
||||
filename that will end with '~'. ``--exclude`` will accept any standard
|
||||
Unix shell-style wildcards, as implemented by the
|
||||
`Python fnmatch module <http://docs.python.org/library/fnmatch.html>`_.
|
||||
You may give multiple ``--exclude`` options. Please pay attention that
|
||||
the pattern will be matched against any level of the directory tree;
|
||||
it's still impossible to specify absolute path exclusions.
|
||||
|
||||
``tahoe backup --exclude-from=/path/to/filename ~ work:backups``
|
||||
|
||||
'--exclude-from' is similar to '--exclude', but reads exclusion
|
||||
patterns from '/path/to/filename', one per line.
|
||||
``--exclude-from`` is similar to ``--exclude``, but reads exclusion
|
||||
patterns from ``/path/to/filename``, one per line.
|
||||
|
||||
``tahoe backup --exclude-vcs ~ work:backups``
|
||||
|
||||
This command will ignore any known file or directory that's used by
|
||||
This command will ignore any file or directory name known to be used by
|
||||
version control systems to store metadata. The excluded names are:
|
||||
|
||||
* CVS
|
||||
@ -491,16 +501,16 @@ Storage Grid Maintenance
|
||||
and directory that can be reached from that point. It then emits one line to
|
||||
stdout for each object it encounters.
|
||||
|
||||
The default behavior is to print the access cap string (like URI:CHK:.. or
|
||||
URI:DIR2:..), followed by a space, followed by the full path name.
|
||||
The default behavior is to print the access cap string (like ``URI:CHK:..``
|
||||
or ``URI:DIR2:..``), followed by a space, followed by the full path name.
|
||||
|
||||
If --storage-index is added, each line will instead contain the object's
|
||||
If ``--storage-index`` is added, each line will instead contain the object's
|
||||
storage index. This (string) value is useful to determine which share files
|
||||
(on the server) are associated with this directory tree. The --verify-cap
|
||||
and --repair-cap options are similar, but emit a verify-cap and repair-cap,
|
||||
respectively. If --raw is provided instead, the output will be a
|
||||
(on the server) are associated with this directory tree. The ``--verify-cap``
|
||||
and ``--repair-cap`` options are similar, but emit a verify-cap and repair-cap,
|
||||
respectively. If ``--raw`` is provided instead, the output will be a
|
||||
JSON-encoded dictionary that includes keys for pathnames, storage index
|
||||
strings, and cap strings. The last line of the --raw output will be a JSON
|
||||
strings, and cap strings. The last line of the ``--raw`` output will be a JSON
|
||||
encoded deep-stats dictionary.
|
||||
|
||||
``tahoe stats tahoe:``
|
||||
@ -513,7 +523,7 @@ Storage Grid Maintenance
|
||||
Debugging
|
||||
=========
|
||||
|
||||
For a list of all debugging commands, use "tahoe debug".
|
||||
For a list of all debugging commands, use "``tahoe debug``".
|
||||
|
||||
"``tahoe debug find-shares STORAGEINDEX NODEDIRS..``" will look through one or
|
||||
more storage nodes for the share files that are providing storage for the
|
||||
@ -527,22 +537,21 @@ concatenate these reports from all storage hosts and use it to look for
|
||||
anomalies.
|
||||
|
||||
"``tahoe debug dump-share SHAREFILE``" will take the name of a single share file
|
||||
(as found by "tahoe find-shares") and print a summary of its contents to
|
||||
(as found by "``tahoe find-shares``") and print a summary of its contents to
|
||||
stdout. This includes a list of leases, summaries of the hash tree, and
|
||||
information from the UEB (URI Extension Block). For mutable file shares, it
|
||||
will describe which version (seqnum and root-hash) is being stored in this
|
||||
share.
|
||||
|
||||
"``tahoe debug dump-cap CAP``" will take a URI (a file read-cap, or a directory
|
||||
read- or write- cap) and unpack it into separate pieces. The most useful
|
||||
aspect of this command is to reveal the storage index for any given URI. This
|
||||
can be used to locate the share files that are holding the encoded+encrypted
|
||||
data for this file.
|
||||
"``tahoe debug dump-cap CAP``" will take any Tahoe-LAFS URI and unpack it
|
||||
into separate pieces. The most useful aspect of this command is to reveal the
|
||||
storage index for any given URI. This can be used to locate the share files
|
||||
that are holding the encoded+encrypted data for this file.
|
||||
|
||||
"``tahoe debug repl``" will launch an interactive python interpreter in which
|
||||
the Tahoe packages and modules are available on sys.path (e.g. by using 'import
|
||||
allmydata'). This is most useful from a source tree: it simply sets the
|
||||
PYTHONPATH correctly and runs the 'python' executable.
|
||||
"``tahoe debug repl``" will launch an interactive Python interpreter in which
|
||||
the Tahoe-LAFS packages and modules are available on ``sys.path`` (e.g. by using
|
||||
'``import allmydata``'). This is most useful from a source tree: it simply sets
|
||||
the PYTHONPATH correctly and runs the Python executable.
|
||||
|
||||
"``tahoe debug corrupt-share SHAREFILE``" will flip a bit in the given
|
||||
sharefile. This can be used to test the client-side verification/repair code.
|
||||
|
Loading…
Reference in New Issue
Block a user