Update tt commands descriptions to 2.1.2

doc/reference/tooling/tt_cli/check.rst

@@ -5,52 +5,32 @@ Checking an application file
 
 ..  code-block:: console
 
-    $ tt check {INSTANCE | APPLICATION[:APP_INSTANCE]}
-
-``tt check`` checks the specified Tarantool application or instance for syntax errors.
-
-Details
--------
-
-``tt`` searches for ``APP_FILE`` inside the ``instances_enabled`` directory
-specified in the :ref:`tt configuration file <tt-config_file_app>`. ``APP_FILE`` can be:
-
-*   the name of an application file without the ``.lua`` extension.
-*   the name of a directory containing the ``init.lua`` file. In this case, ``init.lua`` is checked.
+    $ tt check {FILEPATH | APPLICATION[:APP_INSTANCE]}
 
+``tt check`` checks the syntax correctness of Lua files within Tarantool applications
+or separate Lua scripts. The files must be stored inside the ``instances_enabled``
+directory specified in the :ref:`tt configuration file <tt-config_file_app>`.
 
 Examples
 --------
 
-Single instance
-~~~~~~~~~~~~~~~
-
-*   Check the syntax of the ``app.lua`` file from the ``instances_enabled`` directory:
+To check all Lua files in an application directory at once, specify the directory name:
 
-    ..  code-block:: console
-
-        $ tt check app
-
-
-*   Check the syntax of the ``init.lua`` file from the ``instance1/`` directory inside ``instances_enabled``:
+..  code-block:: console
 
-    ..  code-block:: console
+    $ tt check app
 
-        $ tt check instance1
+To check a single Lua file from an application directory, add the path to this file:
 
-Multiple instances
-~~~~~~~~~~~~~~~~~~
+..  code-block:: console
 
-*   Check all source files of the application stored in the ``app/`` directory inside
-    ``instances_enabled`` in accordance with the :ref:`instances configuration <tt-instances>`:
+    $ tt check app/router
+    # or
+    $ tt check app/router.lua
 
-    ..  code-block:: console
+.. note::
 
-        $ tt check app
+    The ``.lua`` extension can be omitted.
 
-*   Check the source of the ``master`` instance of the application stored in the
-    ``app/`` directory inside ``instances_enabled``:
 
-    ..  code-block:: console
 
-        $ tt check app:master

doc/reference/tooling/tt_cli/clean.rst

@@ -5,12 +5,15 @@ Cleaning instance files
 
 ..  code-block:: console
 
-    $ tt clean {INSTANCE | APPLICATION[:APP_INSTANCE]} [OPTION ...]
+    $ tt clean APPLICATION[:APP_INSTANCE] [OPTION ...]
 
 ``tt clean`` cleans stored files of Tarantool instances: logs, snapshots, and
 other files. To avoid accidental deletion of files, ``tt clean`` shows
 the files it is going to delete and asks for confirmation.
 
+When called without arguments, cleans files of all applications in the current environment.
+
+
 Options
 -------
 
@@ -22,18 +25,6 @@ Options
 Examples
 --------
 
-Single instance
-~~~~~~~~~~~~~~~
-
-*   Clean the files of the ``app`` instance:
-
-    ..  code-block:: console
-
-        $ tt clean app
-
-Multiple instances
-~~~~~~~~~~~~~~~~~~
-
 *   Clean the files of all instances of the ``app`` application:
 
     ..  code-block:: console

doc/reference/tooling/tt_cli/connect.rst

@@ -5,7 +5,7 @@ Connecting to a Tarantool instance
 
 ..  code-block:: console
 
-    $ tt connect {URI|INSTANCE} [OPTION ...]
+    $ tt connect {URI|INSTANCE_NAME} [OPTION ...]
 
 
 ``tt connect`` connects to a Tarantool instance by its URI or instance name specified

doc/reference/tooling/tt_cli/create.rst

@@ -108,7 +108,7 @@ Variables
 
 Templates variables are replaced with their values provided upon the instantiation.
 
-All templates have the ``name`` variable. Its value is taken from the ``--name`` flag.
+All templates have the ``name`` variable. Its value is taken from the ``--name`` option.
 
 To add other variables, define them in the ``vars`` section of the template manifest.
 A variable can have the following attributes:
@@ -151,17 +151,17 @@ Examples:
 
 Variables receive their values during the template instantiation. By default, ``tt create``
 asks you to provide the values interactively. You can use the ``-s`` (or ``--non-interactive``)
-flag to disable the interactive input. In this case, the values are searched in the following order:
+option to disable the interactive input. In this case, the values are searched in the following order:
 
-*   In the ``--var`` flag. Pass a string of the ``var=value`` format after the ``--var``
-    flag. You can pass multiple variables, each after a separate ``--var`` flag:
+*   In the ``--var`` option. Pass a string of the ``var=value`` format after the ``--var``
+    option. You can pass multiple variables, each after a separate ``--var`` option:
 
     ..  code-block:: console
 
         $ tt create template app --var user_name=admin
 
 *   In a file. Specify ``var=value`` pairs in a plain text file, each on a new line, and
-    pass it as the value of the ``--vars-file`` flag:
+    pass it as the value of the ``--vars-file`` option:
 
     ..  code-block:: console
 
@@ -176,32 +176,32 @@ flag to disable the interactive input. In this case, the values are searched in
         version=2
 
 If a variable isn't initialized in any of these ways, the default value
-from the manifest will be used.
+from the manifest is used.
 
 You can combine different ways of passing variables in a single call of ``tt create``.
 
 Application directory
 ~~~~~~~~~~~~~~~~~~~~~
 
-By default, the application will appear in the directory named after the provided
+By default, the application appears in the directory named after the provided
 application name (``--name`` value).
 
-To change the application location, use the ``-dst`` flag.
+To change the application location, use the ``-dst`` option.
 
 Examples
 --------
 
-*   Create the application ``app1`` from the ``simple_app`` template in the current directory:
+*   Create the application ``app1`` from the ``simple_app`` user-defined template in the current directory:
 
     ..  code-block:: console
 
         $ tt create simple_app --name app1
 
 
-*   Create the ``app1`` application in ``/opt/tt/apps/``, set the ``user_name``
-    variable to ``admin``, force rewrite the application directory if it already exists.
+*   Create the ``app1`` application in ``/opt/tt/apps`` from the built-in ``vshard_cluster`` template,
+    force rewrite the application directory if it already exists.
     User interaction is disabled.
 
     ..  code-block:: console
 
-        $ tt create cartridge --name app1 --var user_name=admin -f --non-interactive -dst /opt/tt/apps/
+        $ tt create vshard_cluster --name app1 -f --non-interactive -dst /opt/tt/apps/

doc/reference/tooling/tt_cli/export.rst

@@ -11,7 +11,7 @@ Exporting data
 
 ..  code-block:: console
 
-    $ tt [crud] export URI FILE SPACE [EXPORT_OPTION ...]
+    $ tt [crud] export URI SPACE:FILE ... [EXPORT_OPTION ...]
 
 ``tt [crud] export`` exports a space's data to a file.
 The ``crud`` command is optional and can be used to export a cluster's data by using the `CRUD <https://github.com/tarantool/crud>`_ module. Without ``crud``, data is exported using the :ref:`box.space <box_space>` API.
@@ -43,7 +43,7 @@ The command below exports data of the ``customers`` space to the ``customers.csv
 
 .. code-block:: console
 
-    $ tt crud export localhost:3301 customers.csv customers
+    $ tt crud export localhost:3301 customers:customers.csv
 
 If the ``customers`` space has five fields (``id``, ``bucket_id``, ``firstname``, ``lastname``, and ``age``), the file with exported data might look like this:
 
@@ -70,7 +70,7 @@ To export data with a space's field names in the first row, use the ``--header``
 
 .. code-block:: console
 
-    $ tt crud export localhost:3301 customers.csv customers \
+    $ tt crud export localhost:3301 customers:customers.csv  \
                      --header
 
 In this case, field values start from the second row, for example:
@@ -95,7 +95,7 @@ For example, the command below exports compound values serialized in JSON:
 
 .. code-block:: console
 
-    $ tt crud export localhost:3301 customers.csv customers \
+    $ tt crud export localhost:3301 customers:customers.csv  \
                      --compound-value-format json
 
 

doc/reference/tooling/tt_cli/import.rst

@@ -11,9 +11,9 @@ Importing data
 
 .. code-block:: console
 
-    $ tt [crud] import URI FILE SPACE [IMPORT_OPTION ...]
+    $ tt [crud] import URI FILE:SPACE [IMPORT_OPTION ...]
     # or
-    $ tt [crud] import URI - SPACE < FILE [IMPORT_OPTION ...]
+    $ tt [crud] import URI :SPACE < FILE [IMPORT_OPTION ...]
 
 ``tt [crud] import`` imports data from a file to a space.
 The ``crud`` command is optional and can be used to import data to a cluster by using the `CRUD <https://github.com/tarantool/crud>`_ module. Without ``crud``, data is imported using the :ref:`box.space <box_space>` API.
@@ -62,7 +62,7 @@ If the target ``customers`` space has fields with the same names, you can import
 
 .. code-block:: console
 
-    $ tt crud import localhost:3301 customers.csv customers \
+    $ tt crud import localhost:3301 customers.csv:customers \
                      --header \
                      --match=header
 
@@ -92,15 +92,15 @@ you can configure mapping as follows:
 
 .. code-block:: console
 
-    $ tt crud import localhost:3301 customers.csv customers \
+    $ tt crud import localhost:3301 customers.csv:customers \
                      --header \
                      --match "id=customer_id;firstname=name;lastname=surname;age=customer_age"
 
 Similarly, you can configure mapping using numeric field positions in the input file:
 
 .. code-block:: console
 
-    $ tt crud import localhost:3301 customers.csv customers \
+    $ tt crud import localhost:3301 customers.csv:customers \
                      --header \
                      --match "id=1;firstname=2;lastname=3;age=4"
 
@@ -119,7 +119,7 @@ In the example below, values already existing in the space are replaced with new
 
 .. code-block:: console
 
-    $ tt crud import localhost:3301 customers.csv customers \
+    $ tt crud import localhost:3301 customers.csv:customers \
                      --on-exist replace
 
 .. _tt-import-parsing-error:
@@ -131,7 +131,7 @@ To skip rows whose data cannot be parsed correctly, use the ``--on-error`` optio
 
 .. code-block:: console
 
-    $ tt crud import localhost:3301 customers.csv customers \
+    $ tt crud import localhost:3301 customers.csv:customers \
                      --on-error skip
 
 
@@ -156,7 +156,7 @@ Options
 
     .. code-block:: console
 
-        $ tt crud import localhost:3301 customers.csv customers \
+        $ tt crud import localhost:3301 customers.csv:customers \
                          --delimiter tab
 
     .. NOTE::

doc/reference/tooling/tt_cli/installation.rst

@@ -60,7 +60,7 @@ To build ``tt`` from sources:
 
       git clone https://github.com/tarantool/tt --recursive
 
-3.  Go to the ``tt/`` directory:
+3.  Go to the ``tt`` directory:
 
     ..  code-block:: bash
 

doc/reference/tooling/tt_cli/instances.rst

@@ -7,7 +7,8 @@ Listing enabled applications
 
     $ tt instances
 
-``tt instances`` shows the list of enabled applications.
+``tt instances`` shows the list of enabled applications and their instances
+in the current environment.
 
 .. note::
 
@@ -19,7 +20,7 @@ Listing enabled applications
 Example
 --------
 
-*   Show the list of enabled applications:
+*   Show the list of enabled applications and their instances:
 
     ..  code-block:: console
 

doc/reference/tooling/tt_cli/logrotate.rst

@@ -5,7 +5,7 @@ Rotating instance logs
 
 ..  code-block:: console
 
-    $ tt logrotate {INSTANCE | APPLICATION[:APP_INSTANCE]}
+    $ tt logrotate APPLICATION[:APP_INSTANCE]
 
 ``tt logrotate`` rotates logs of a Tarantool application or specific instances,
 and the ``tt`` log. For example, you need to call this function to continue logging

doc/reference/tooling/tt_cli/restart.rst

@@ -5,12 +5,17 @@ Restarting a Tarantool instance
 
 ..  code-block:: console
 
-    $ tt restart {INSTANCE | APPLICATION[:APP_INSTANCE]} [OPTION ...]
+    $ tt restart APPLICATION[:APP_INSTANCE] [OPTION ...]
 
 ``tt restart`` restarts the specified running Tarantool instance.
 A ``tt restart`` call is equivalent to consecutive calls of
 :doc:`tt stop <stop>` and :doc:`tt start <start>`.
 
+When called without arguments, restarts all running applications in the current environment.
+
+See also: :ref:`tt-start`, :ref:`tt-stop`, :ref:`tt-status`.
+
+
 Options
 -------
 
@@ -21,27 +26,22 @@ Options
 Examples
 --------
 
-Single instance
-~~~~~~~~~~~~~~~
+*   Restart all instances of the application stored in the ``app`` directory inside
+    ``instances_enabled`` in accordance with the :ref:`instances configuration <tt-instances>`:
 
-Restart the ``app`` instance with automatic confirmation:
+    ..  code-block:: console
 
-..  code-block:: console
+        $ tt restart app
 
-    $ tt restart app -y
+    .. note::
 
-Multiple instances
-~~~~~~~~~~~~~~~~~~
+        This call starts all application instances specified in its ``instances.yml``,
+        even those that were not running before the call.
 
-*   Restart all instances of the application stored in the ``app/`` directory inside
-    ``instances_enabled`` in accordance with the :ref:`instances configuration <tt-instances>`:
+*   Restart only the ``master`` instance of the ``app`` application  with automatic confirmation:
 
     ..  code-block:: console
 
-        $ tt restart app
+        $ tt restart app:master -y
 
-*   Restart only the ``master`` instance of the application stored in the ``app/`` directory inside ``instances_enabled``:
-
-    ..  code-block:: console
 
-        $ tt restart app:master

doc/reference/tooling/tt_cli/run.rst

@@ -7,7 +7,7 @@ Running code in a Tarantool instance
 
     $ tt run [SCRIPT|-e EXPR] [OPTION ...]
 
-``tt run`` executes Lua code in a Tarantool instance.
+``tt run`` executes Lua code in a new Tarantool instance.
 
 Options
 -------