---
layout: default
navsection: sdk
navmenu: Command line tools (CLI SDK)
title: "arv reference"
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{% comment %}
Copyright (C) The Arvados Authors. All rights reserved.

SPDX-License-Identifier: CC-BY-SA-3.0
{% endcomment %}

_In order to use the @arv@ command, make sure that you have a "working environment.":{{site.baseurl}}/user/getting_started/check-environment.html_

h3. Usage

See the "CLI overview":{{site.baseurl}}/sdk/cli/index.html page.

h3. Resource types and methods

Get list of resource types
@arv --help@

Get list of resource methods for the "user" resource type
@arv user --help@


h3. Basic examples

Get record for current user
@arv user current@

Get entire record for some specific user
@arv user get --uuid 6dnxa-tpzed-iimd25zhzh84gbk@

Update user record
@arv user update --uuid 6dnxa-tpzed-iimd25zhzh84gbk --user '{"first_name":"Bob"}'@

Get list of groups
@arv group list@

Delete a group
@arv group delete --uuid 6dnxa-j7d0g-iw7i6n43d37jtog@

Create an empty collection
@arv collection create --collection '{"name": "test collection"}'@

h3. Common commands

Most @arv@ resources accept the following commands:

* @get@
* @list@
* @create@
* @update@
* @delete@


h4. @list@

Arguments accepted by the @list@ subcommand include:

<pre>
  -l, --limit=<i>        Maximum number of items to return. (Default: 100)
  -o, --offset=<i>       Number of items to skip before first returned record. (Default: 0)
  -f, --filters=<s>      Conditions for filtering items.
  -r, --order=<s>        Order in which to return matching items.
  -s, --select=<s>       Select which fields to return.
  -d, --distinct         Return each distinct object.
  -c, --count=<s>        Type of count to return in items_available ('none' or 'exact'). (Default: exact)
</pre>

The @--filters@ option takes a string describing a JSON list of filters on which the returned resources should be returned. Each filter is a three-element list of _[field, operator, value]_, where the _operator_ may be one of @=@, @<@, @<=@, @>@, @>=@, @!=@, @like@, or @ilike@.

Example:

@arv collection list --filters '[["name", "=", "PGP VAR inputs"], ["created_at", ">=", "2014-10-01"]]'@

will return a list of all collections visible to the current user which are named "PGP VAR inputs" and were created on or after October 1, 2014. See the "Common resource methods":{{site.baseurl}}/api/methods.html#index page for more details on using @list@ and @--filters@.