Use shell scripts on macOS devices in Intune

Use shell scripts to extend device management capabilities in Intune, beyond what is supported by the macOS operating system.

Prerequisites

Ensure that the following prerequisites are met when composing shell scripts and assigning them to macOS devices.

• Devices are running macOS 12.0 or later.
• Devices are managed by Intune.
• Devices are connected directly to the Internet. Connection through a proxy is not supported.
• Shell scripts begin with #! and must be in a valid location such as #!/bin/sh or #!/usr/bin/env zsh.
• Command-line interpreters for the applicable shells are installed.

Important considerations before using shell scripts

• Shell scripts require that the Microsoft Intune management agent is successfully installed on the macOS device. For more information, see Microsoft Intune management agent for macOS.
• Shell scripts run in parallel on devices as separate processes.
• Shell scripts that are run as the signed-in user will run for all currently signed-in user accounts on the device at the time of the run.
• An end user is required to sign in to the device to execute scripts running as a signed-in user.
• Root user privileges are required if the script requires making changes that a standard user account cannot.
• Shell scripts will attempt to run more frequently than the chosen script frequency for certain conditions, such as if the disk is full, if the storage location is tampered with, if the local cache is deleted, or if the Mac device restarts.
• Shell scripts that are running for longer than 60 minutes are stopped and reported as "failed".

Create and assign a shell script policy

1. Sign in to the Microsoft Intune admin center.

2. Select Devices > By platform > macOS > Manage devices > Scripts > Add.

3. In Basics, enter the following properties, and select Next:

   • Name: Enter a name for the shell script.
   • Description: Enter a description for the shell script. This setting is optional, but recommended.

4. In Script settings, enter the following properties, and select Next:

   • Upload script: Browse to the shell script. The script file must be less than 1 MB in size.
   • Run script as signed-in user: Select Yes to run the script with the user's credentials on the device. Choose No (default) to run the script as the root user.
   • Hide script notifications on devices: By default, script notifications are shown for each script that is run. End users see a IT is configuring your computer notification from Intune on macOS devices.
   • Script frequency: Select how often the script is to be run. Choose Not configured (default) to run a script only once. Scripts with a frequency set will also run after a device restart.
   • Max number of times to retry if script fails: Select how many times the script should be run if it returns a non-zero exit code (zero meaning success). Choose Not configured (default) to not retry when a script fails.

5. In Scope tags, optionally add scope tags for the script, and select Next. You can use scope tags to determine who can see scripts in Intune. For full details about scope tags, see Use role-based access control and scope tags for distributed IT.

6. Select Assignments > Select groups to include. An existing list of Microsoft Entra groups is shown. Select one or more user or device groups that are to receive the script. Choose Select. The groups you choose are shown in the list, and will receive your script policy.

   Note

   • Shell scripts assigned to user groups applies to any user logging in to the Mac.
   • Updating assignments for shell scripts also updates assignments for Microsoft Intune MDM Agent for macOS.

7. In Review + add, a summary is shown of the settings you configured. Select Add to save the script. When you select Add, the script policy is deployed to the groups you chose.

The script you created now appears in the list of scripts. If needed, you can view the contents of macOS shell scripts after you upload them to Intune.

Monitor a shell script policy

You can monitor the run status of all assigned scripts for users and devices by choosing one of the following reports:

• Scripts > select the script to monitor > Device status
• Scripts > select the script to monitor > User status

Once a script runs, it returns one of the following statuses:

• A script run status of Failed indicates that the script returned a non-zero exit code or the script is malformed.
• A script run status of Success indicated that the script returned zero as the exit code.

Troubleshoot macOS shell script policies using log collection

You can collect device logs to help troubleshoot script issues on macOS devices.

Requirements for log collection

The following items are required to collect logs on a macOS device:

• You must specify the full absolute log file path.
• File paths must be separated using only a semicolon (;).
• The maximum log collection size to upload is 60 MB (compressed) or 25 files, whichever occurs first.
• File types that are allowed for log collection include the following extensions: .log, .zip, .gz, .tar, .txt, .xml, .crash, .rtf

Collect device logs

1. Sign in to the Microsoft Intune admin center.

2. Navigate to Devices > Manage devices > Scripts and remediations > Platform scripts and select a macOS shell script.

3. In Device status or User status report, select a device.

4. Select Collect logs, provide folder paths of log files separated only by a semicolon (;) without spaces or newlines in between paths.
   For example, multiple paths should be written as /Path/to/logfile1.zip;/Path/to/logfile2.log.

   Important

   Multiple log file paths separated using comma, period, newline or quotation marks with or without spaces will result in log collection error. Spaces are also not allowed as separators between paths.

5. Select OK. Logs are collected the next time the Intune management agent on the device checks in with Intune. This check-in usually occurs every 8 hours.

   Note

   • Collected logs are encrypted on the device, transmitted and stored in Microsoft Azure storage for 30 days. Stored logs are decrypted on demand and downloaded using Microsoft Intune admin center.
   • In addition to the admin-specified logs, the Intune management agent logs are also collected from these folders: /Library/Logs/Microsoft/Intune and ~/Library/Logs/Microsoft/Intune. The agent log file-names are IntuneMDMDaemon date--time.log and IntuneMDMAgent date--time.log.
   • If any admin-specified file is missing or has the wrong file-extension, you will find these file-names listed in LogCollectionInfo.txt.

Log collection errors

Log collection may not be successful due to any of the following reasons provided in the table below. To resolve these errors, follow the remediation steps.

Custom attributes for macOS

You can create custom attribute profiles which enable you to collect custom properties from managed macOS device using shell scripts.

Create and assign a custom attribute for macOS devices

1. Sign in to the Microsoft Intune admin center.

2. Select Devices > By platform > macOS > Organize devices > Custom attributes for macOS > Add.

3. In Basics, enter the following properties, and select Next:

   • Name: Enter a name for the script.
   • Description: Enter a description for the script. This setting is optional, but recommended.

4. In Attribute settings, enter the following properties, and select Next:

   • Data type of attribute: Select the data type of the result that the script returns. Available values are String, Integer, and Date.
   • Script: Select a script file.

   Additional details:

   • The shell script must echo the attribute to be reported and the data type of the output must match the data type of attribute in the custom attribute profile.
   • The result returned by the shell script must be 20KB or less.

   Note

   When using Date type attributes, ensure that the shell script returns dates in ISO-8601 format. See the examples below.

   To print an ISO-8601-compliant date with time-zone:

   #!/bin/sh
   var=$(date +"%Y-%m-%dT%H:%M:%S%z")
   echo $var # Prints an ISO-8601 compliant date with time-zone
   

   To print an ISO-8601-compliant date in UTC time:

   #!/bin/sh
   var=$(date -u +"%Y-%m-%dT%H:%M:%SZ")
   echo $var # Prints an ISO-8601 compliant date in UTC time
   

5. In Assignments, click Select groups to include. When you choose Select groups to include an existing list of Microsoft Entra groups is shown. Select one or more user or device groups that are to receive the script. Choose Select. The groups you choose are shown in the list, and will receive your script policy. Alternatively, you can choose to select All users, All devices, or All users and all devices by selecting one of these options in the dropdown box next to Assign to.

   Note

   • Scripts assigned to user groups applies to any user logging in to the Mac.

6. In Review + add, a summary is shown of the settings you configured. Select Add to save the script. When you select Add, the script policy is deployed to the groups you chose.

The script you created now appears in the list of custom attributes. If needed, you can view the contents of custom attributes after you upload them to Intune.

Monitor a custom attribute policy

You can monitor the run status of all assigned custom attribute profiles for users and devices by choosing one of the following reports:

• Custom attributes > select the custom attribute profile to monitor > Device status
• Custom attributes > select the custom attribute profile to monitor > User status

Once a custom attribute profile runs, it returns one of the following statuses:

• A status of Failed indicates that the script returned a non-zero exit code or the script is malformed. The error is reported in the Result column.
• As status of Success indicates that the script returned zero as the exit code. The output echoed by the script is reported in the Result column.

Frequently asked questions

Why are assigned shell scripts not running on the device?

There could be several reasons:

• The agent might need to check in to receive new or updated scripts. This check-in process occurs every 8 hours and is different from the MDM check-in. Make sure that the device is awake and connected to a network for a successful agent check-in and wait for the agent to check in. You can also request the end user to open Company Portal on the Mac, select the device and click Check settings.
• The agent may not be installed. Check that the agent is installed at /Library/Intune/Microsoft Intune Agent.app on the macOS device.
• The agent may not be in a healthy state. The agent will attempt to recover for 24 hours, remove itself and reinstall if shell scripts are still assigned.

How frequently is script run status reported?

Script run status is reported to Microsoft Intune admin center as soon as script run is complete. If a script is scheduled to run periodically at a set frequency, it only reports status the first time it runs.

When are shell scripts run again?

A script is run again only when the Max number of times to retry if script fails setting is configured and the script fails on run. If the Max number of times to retry if script fails is not configured and a script fails on run, it will not be run again and run status will be reported as failed.

What Intune role permissions are required for shell scripts?

Your assigned-intune role requires Device configurations permissions to delete, assign, create, update, or read shell scripts.

Known issues

• No script run status: In the unlikely event that a script is received on the device and the device goes offline before the run status is reported, the device will not report run status for the script in the admin center.

Additional information

When you deploy shell scripts or custom attributes for macOS devices from Microsoft Intune, it deploys the new universal version of the Intune management agent app that runs natively on Apple Silicon Mac machines. The same deployment will install the x64 version of the app on Intel Mac machines. Rosetta 2 is required to run x64 (Intel) version of apps on Apple Silicon Macs. To install Rosetta 2 on Apple Silicon Macs automatically, you can deploy a shell script in Intune. To view a sample script, see Rosetta 2 Installation Script.

Next steps

• Create a compliance policy in Microsoft Intune