Get started with Azure Data Lake Storage Gen1 using the Azure CLI

Learn how to use the Azure CLI to create an Azure Data Lake Storage Gen1 account and perform basic operations such as create folders, upload and download data files, delete your account, etc. For more information about Data Lake Storage Gen1, see Overview of Data Lake Storage Gen1.

The Azure CLI is Azure's command-line experience for managing Azure resources. It can be used on macOS, Linux, and Windows. For more information, see Overview of Azure CLI. You can also look at the Azure Data Lake Storage Gen1 CLI reference for a complete list of commands and syntax.

Prerequisites

Before you begin this article, you must have the following:

• An Azure subscription. See Get Azure free trial.

• Azure CLI - See Install Azure CLI for instructions.

Authentication

This article uses a simpler authentication approach with Data Lake Storage Gen1 where you log in as an end-user user. The access level to the Data Lake Storage Gen1 account and file system is then governed by the access level of the logged in user. However, there are other approaches as well to authenticate with Data Lake Storage Gen1, which are end-user authentication or service-to-service authentication. For instructions and more information on how to authenticate, see End-user authentication or Service-to-service authentication.

Log in to your Azure subscription

1. Log into your Azure subscription.

   az login
   

   You get a code to use in the next step. Use a web browser to open the page https://aka.ms/devicelogin and enter the code to authenticate. You are prompted to log in using your credentials.

2. Once you log in, the window lists all the Azure subscriptions that are associated with your account. Use the following command to use a specific subscription.

   az account set --subscription <subscription id> 
   

Create an Azure Data Lake Storage Gen1 account

1. Create a new resource group. In the following command, provide the parameter values you want to use. If the location name contains spaces, put it in quotes. For example "East US 2".

   az group create --location "East US 2" --name myresourcegroup
   

2. Create the Data Lake Storage Gen1 account.

   az dls account create --account mydatalakestoragegen1 --resource-group myresourcegroup
   

Create folders in a Data Lake Storage Gen1 account

You can create folders under your Azure Data Lake Storage Gen1 account to manage and store data. Use the following command to create a folder called mynewfolder at the root of the Data Lake Storage Gen1 account.

az dls fs create --account mydatalakestoragegen1 --path /mynewfolder --folder

Upload data to a Data Lake Storage Gen1 account

You can upload data to Data Lake Storage Gen1 directly at the root level or to a folder that you created within the account. The snippets below demonstrate how to upload some sample data to the folder (mynewfolder) you created in the previous section.

If you are looking for some sample data to upload, you can get the Ambulance Data folder from the Azure Data Lake Git Repository. Download the file and store it in a local directory on your computer, such as C:\sampledata.

az dls fs upload --account mydatalakestoragegen1 --source-path "C:\SampleData\AmbulanceData\vehicle1_09142014.csv" --destination-path "/mynewfolder/vehicle1_09142014.csv"

List files in a Data Lake Storage Gen1 account

Use the following command to list the files in a Data Lake Storage Gen1 account.

az dls fs list --account mydatalakestoragegen1 --path /mynewfolder

The output of this should be similar to the following:

[
    {
        "accessTime": 1491323529542,
        "aclBit": false,
        "blockSize": 268435456,
        "group": "1808bd5f-62af-45f4-89d8-03c5e81bac20",
        "length": 1589881,
        "modificationTime": 1491323531638,
        "msExpirationTime": 0,
        "name": "mynewfolder/vehicle1_09142014.csv",
        "owner": "1808bd5f-62af-45f4-89d8-03c5e81bac20",
        "pathSuffix": "vehicle1_09142014.csv",
        "permission": "770",
        "replication": 1,
        "type": "FILE"
    }
]

Rename, download, and delete data from a Data Lake Storage Gen1 account

• To rename a file, use the following command:

  az dls fs move --account mydatalakestoragegen1 --source-path /mynewfolder/vehicle1_09142014.csv --destination-path /mynewfolder/vehicle1_09142014_copy.csv
  

• To download a file, use the following command. Make sure the destination path you specify already exists.

  az dls fs download --account mydatalakestoragegen1 --source-path /mynewfolder/vehicle1_09142014_copy.csv --destination-path "C:\mysampledata\vehicle1_09142014_copy.csv"
  

  Note

  The command creates the destination folder if it does not exist.

• To delete a file, use the following command:

  az dls fs delete --account mydatalakestoragegen1 --path /mynewfolder/vehicle1_09142014_copy.csv
  

  If you want to delete the folder mynewfolder and the file vehicle1_09142014_copy.csv together in one command, use the --recurse parameter

  az dls fs delete --account mydatalakestoragegen1 --path /mynewfolder --recurse
  

Work with permissions and ACLs for a Data Lake Storage Gen1 account

In this section you learn about how to manage ACLs and permissions using the Azure CLI. For a detailed discussion on how ACLs are implemented in Azure Data Lake Storage Gen1, see Access control in Azure Data Lake Storage Gen1.

• To update the owner of a file/folder, use the following command:

  az dls fs access set-owner --account mydatalakestoragegen1 --path /mynewfolder/vehicle1_09142014.csv --group 80a3ed5f-959e-4696-ba3c-d3c8b2db6766 --owner 6361e05d-c381-4275-a932-5535806bb323
  

• To update the permissions for a file/folder, use the following command:

  az dls fs access set-permission --account mydatalakestoragegen1 --path /mynewfolder/vehicle1_09142014.csv --permission 777
  

• To get the ACLs for a given path, use the following command:

  az dls fs access show --account mydatalakestoragegen1 --path /mynewfolder/vehicle1_09142014.csv
  

  The output should be similar to the following:

  {
      "entries": [
      "user::rwx",
      "group::rwx",
      "other::---"
      ],
      "group": "1808bd5f-62af-45f4-89d8-03c5e81bac20",
      "owner": "1808bd5f-62af-45f4-89d8-03c5e81bac20",
      "permission": "770",
      "stickyBit": false
  }
  

• To set an entry for an ACL, use the following command:

  az dls fs access set-entry --account mydatalakestoragegen1 --path /mynewfolder --acl-spec user:6360e05d-c381-4275-a932-5535806bb323:-w-
  

• To remove an entry for an ACL, use the following command:

  az dls fs access remove-entry --account mydatalakestoragegen1 --path /mynewfolder --acl-spec user:6360e05d-c381-4275-a932-5535806bb323
  

• To remove an entire default ACL, use the following command:

  az dls fs access remove-all --account mydatalakestoragegen1 --path /mynewfolder --default-acl
  

• To remove an entire non-default ACL, use the following command:

  az dls fs access remove-all --account mydatalakestoragegen1 --path /mynewfolder
  

Delete a Data Lake Storage Gen1 account

Use the following command to delete a Data Lake Storage Gen1 account.

az dls account delete --account mydatalakestoragegen1

When prompted, enter Y to delete the account.

Next steps

• Use Azure Data Lake Storage Gen1 for big data requirements
• Secure data in Data Lake Storage Gen1
• Use Azure Data Lake Analytics with Data Lake Storage Gen1
• Use Azure HDInsight with Data Lake Storage Gen1