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                    <h1 id="read-dbabackupheader">Read-DbaBackupHeader</h1>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td><strong>Author</strong></td>
<td>Chrissy LeMaire (@cl), netnerds.net</td>
</tr>
<tr>
<td><strong>Availability</strong></td>
<td>Windows, Linux, macOS</td>
</tr>
</tbody>
</table>
<p> </p>
<p>Want to see the source code for this command? Check out <a href="https://github.com/dataplat/dbatools/blob/master/public/Read-DbaBackupHeader.ps1">Read-DbaBackupHeader</a> on GitHub.
<br>
Want to see the Bill Of Health for this command? Check out <a href="https://dataplat.github.io/boh#Read-DbaBackupHeader">Read-DbaBackupHeader</a>.</p>
<h2 id="synopsis">Synopsis</h2>
<p>Reads and displays detailed information about a SQL Server backup.</p>
<h2 id="description">Description</h2>
<p>Reads full, differential and transaction log backups. An online SQL Server is required to parse the backup files and the path specified must be relative to that SQL Server.</p>
<h2 id="syntax">Syntax</h2>
<pre><code>Read-DbaBackupHeader
    [-SqlInstance] &lt;DbaInstanceParameter&gt;
    [[-SqlCredential] &lt;PSCredential&gt;]
    [-Path] &lt;Object[]&gt;
    [-Simple]
    [-FileList]
    [[-AzureCredential] &lt;String&gt;]
    [-EnableException]
    [&lt;CommonParameters&gt;]

</code></pre>
<p> </p>
<h2 id="examples">Examples</h2>
<p> </p>
<h5 id="example-1">Example:  1</h5>
<pre><code>PS C:\&gt; Read-DbaBackupHeader -SqlInstance sql2016 -Path S:\backups\mydb\mydb.bak
</code></pre>
<p>Logs into sql2016 using Windows authentication and reads the local file on sql2016, S:\backups\mydb\mydb.bak.<br>
If you are running this command on a workstation and connecting remotely, remember that sql2016 cannot access files on your own workstation.<br></p>
<h5 id="example-2">Example:  2</h5>
<pre><code>PS C:\&gt; Read-DbaBackupHeader -SqlInstance sql2016 -Path \\nas\sql\backups\mydb\mydb.bak, \\nas\sql\backups\otherdb\otherdb.bak
</code></pre>
<p>Logs into sql2016 and reads two backup files - mydb.bak and otherdb.bak. The SQL Server service account must have rights to read this file.<br></p>
<h5 id="example-3">Example:  3</h5>
<pre><code>PS C:\&gt; Read-DbaBackupHeader -SqlInstance . -Path C:\temp\myfile.bak -Simple
</code></pre>
<p>Logs into the local workstation (or computer) and shows simplified output about C:\temp\myfile.bak. The SQL Server service account must have rights to read this file.<br></p>
<h5 id="example-4">Example:  4</h5>
<pre><code>PS C:\&gt; $backupinfo = Read-DbaBackupHeader -SqlInstance . -Path C:\temp\myfile.bak
PS C:\&gt; $backupinfo.FileList
</code></pre>
<p>Displays detailed information about each of the datafiles contained in the backupset.<br></p>
<h5 id="example-5">Example:  5</h5>
<pre><code>PS C:\&gt; Read-DbaBackupHeader -SqlInstance . -Path C:\temp\myfile.bak -FileList
</code></pre>
<p>Also returns detailed information about each of the datafiles contained in the backupset.<br></p>
<h5 id="example-6">Example:  6</h5>
<pre><code>PS C:\&gt; &quot;C:\temp\myfile.bak&quot;, &quot;\backupserver\backups\myotherfile.bak&quot; | Read-DbaBackupHeader -SqlInstance sql2016  | Where-Object { $_.BackupSize.Megabyte -gt 100 }
</code></pre>
<p>Reads the two files and returns only backups larger than 100 MB<br></p>
<h5 id="example-7">Example:  7</h5>
<pre><code>PS C:\&gt; Get-ChildItem \\nas\sql\*.bak | Read-DbaBackupHeader -SqlInstance sql2016
</code></pre>
<p>Gets a list of all .bak files on the \nas\sql share and reads the headers using the server named &quot;sql2016&quot;. This means that the server, sql2016, must have read access to the \nas\sql share.<br></p>
<h5 id="example-8">Example:  8</h5>
<pre><code>PS C:\&gt; Read-DbaBackupHeader -SqlInstance sql2016 -Path https://dbatoolsaz.blob.core.windows.net/azbackups/restoretime/restoretime_201705131850.bak -AzureCredential AzureBackupUser
</code></pre>
<p>Gets the backup header information from the SQL Server backup file stored at <a href="https://dbatoolsaz.blob.core.windows.net/azbackups/restoretime/restoretime_201705131850.bak">https://dbatoolsaz.blob.core.windows.net/azbackups/restoretime/restoretime_201705131850.bak</a> on Azure<br></p>
<h3 id="required-parameters">Required Parameters</h3>
<h5 id="sqlinstance">-SqlInstance</h5>
<p>The target SQL Server instance or instances. <br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>True</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="path">-Path</h5>
<p>Path to SQL Server backup file. This can be a full, differential or log backup file. Accepts valid filesystem paths and URLs. <br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>True</td>
</tr>
<tr>
<td>Pipeline</td>
<td>true (ByValue)</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h3 id="optional-parameters">Optional Parameters</h3>
<h5 id="sqlcredential">-SqlCredential</h5>
<p>Login to the target instance using alternative credentials. Accepts PowerShell credentials (Get-Credential).<br />
Windows Authentication, SQL Server Authentication, Active Directory - Password, and Active Directory - Integrated are all supported.<br />
For MFA support, please use Connect-DbaInstance.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="simple">-Simple</h5>
<p>If this switch is enabled, fewer columns are returned, giving an easy overview.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>False</td>
</tr>
</tbody>
</table>
<h5 id="filelist">-FileList</h5>
<p>If this switch is enabled, detailed information about the files within the backup is returned.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>False</td>
</tr>
</tbody>
</table>
<h5 id="azurecredential">-AzureCredential</h5>
<p>Name of the SQL Server credential that should be used for Azure storage access.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td></td>
</tr>
</tbody>
</table>
<h5 id="enableexception">-EnableException</h5>
<p>By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message.<br />
This avoids overwhelming you with &quot;sea of red&quot; exceptions, but is inconvenient because it basically disables advanced scripting.<br />
Using this switch turns this &quot;nice by default&quot; feature off and enables you to catch exceptions with your own try/catch.<br></p>
<table>
<thead>
<tr>
<th></th>
<th></th>
</tr>
</thead>
<tbody>
<tr>
<td>Alias</td>
<td></td>
</tr>
<tr>
<td>Required</td>
<td>False</td>
</tr>
<tr>
<td>Pipeline</td>
<td>false</td>
</tr>
<tr>
<td>Default Value</td>
<td>False</td>
</tr>
</tbody>
</table>
<p> </p>

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