---
layout: default
navsection: sdk
navmenu: Command line tools (CLI SDK)
title: "Overview"

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{% comment %}
Copyright (C) The Arvados Authors. All rights reserved.

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

The @arv@ CLI tool provide provides a convenient interface to manipulate API resources. Additionally, it provides access to a number of subcommands.

h3. Syntax

The @arv@ command takes the following arguments:

<pre>
Arvados command line client
Usage: arv [--flags] subcommand|resource [method] [--parameters]

Available flags:
  -n, --dry-run       Don't actually do anything
  -v, --verbose       Print some things on stderr
  -f, --format=<s>    Set the output format. Must be one of json (default),
                      yaml or uuid. (Default: json)
  -s, --short         Return only UUIDs (equivalent to --format=uuid)

Use 'arv subcommand|resource --help' to get more information about a particular
command or resource.

Available subcommands: copy, create, edit, keep, pipeline, run, tag, ws

Available resources: api_client_authorization, api_client, authorized_key,
collection, user_agreement, group, job_task, link, log, keep_disk,
pipeline_instance, node, repository, specimen, pipeline_template, user,
virtual_machine, trait, human, job, keep_service

Additional options:
  -e, --version       Print version and exit
  -h, --help          Show this message
</pre>

h4. Flags: @--format@

- @--format=json@ := Output response as JSON. This is the default format.

- @--format=yaml@ := Output response as YAML

- @--format=uuid@ := Output only the UUIDs of object(s) in the API response, one per line.



h3. Resources

See the "arv reference":{{site.baseurl}}/sdk/cli/reference.html page.

h3. Subcommands

See the "arv subcommands":{{site.baseurl}}/sdk/cli/subcommands.html page.