ubuntuask.com
-
6 min readTo filter PowerShell SSH output, you can use built-in cmdlets such as Select-String or Where-Object. Select-String can be used to search for specific patterns in the output, while Where-Object can be used to filter output based on conditions. You can also pipe the output to other cmdlets such as Sort-Object or Format-Table to further manipulate or format the data. Additionally, you can use regular expressions with Select-String to perform more complex filtering tasks.
-
5 min readSession management across a clustered environment in AEM involves ensuring that user sessions are maintained and synchronized across multiple instances of the AEM application. This typically involves using a shared session store, such as a database, to store session information that can be accessed by all instances in the cluster.
-
6 min readTo count or sum an array in MongoDB, you can use the aggregation framework which provides powerful tools for data analysis. You can use the $unwind operator to flatten the array, $group operator to group the flattened documents and apply the $sum operator to calculate the total sum. Another option is to use the $size operator to get the count of elements in the array. By combining these operators in the aggregation pipeline, you can perform counting and summing operations on arrays in MongoDB.
-
4 min readTo save text content as a jcr:data property in AEM, you can follow these steps:Access the AEM authoring environment.Navigate to the page or component where you want to save the text content.Open the component or page properties.Locate the "jcr:data" property field.Enter your text content into the "jcr:data" property field.Save the changes.Verify that the text content has been successfully saved as a jcr:data property in AEM.
-
6 min readTo join two collections in MongoDB, you can use the $lookup aggregation operator. This operator allows you to perform a left outer join between two collections based on a common field. By using $lookup, you can combine documents from both collections into a single result set.When using $lookup, you specify the name of the collection you want to join with, as well as the field that will be used to match documents from the two collections.
-
4 min readTo update the value of a field for all pages in AEM, you can create a workflow that loops through all the pages and updates the field with the new value. You can either use the OOTB functionalities in AEM to create a workflow for this purpose or write a custom workflow that handles the update operation. Make sure to test the workflow on a smaller set of pages before running it on all pages to avoid any unintended consequences.
-
6 min readIn MongoDB, the intersect operator is used to find the common elements between two or more arrays in a collection. It is represented by the $setIntersection operator in aggregation queries.To use the intersect operator in MongoDB, you can include it in the $project stage of an aggregation pipeline. For example, to find the common elements between two arrays stored in the "array1" and "array2" fields of a collection, you can use the following query:db.collection.
-
5 min readIn AEM, you can restrict components on a template level by using policies. Policies allow you to define rules for what components can be added to a page based on the template being used.To restrict components on a template level, you can create a policy for that template that specifies which components are allowed or disallowed on pages created using that template. This can be done by going to the template editor in AEM and configuring the allowed components for that template.
-
3 min readTo add a value to an existing value in MongoDB, you can use the $inc operator in an update operation. This operator increments the value of the specified field by the specified amount. For example, if you want to add 5 to the "count" field of a document with _id equal to 123, you can use the following update operation:db.collection.update({_id: 123}, {$inc: {count: 5}});This operation will add 5 to the existing value of the "count" field in the document with _id equal to 123.
-
4 min readTo locate an index in AEM, you can go to the CRXDE Lite tool in the AEM console. Navigate to the path where the index is located within the repository. You can search for the index by its name or properties using the query feature in CRXDE Lite. Once you have located the index, you can view its configuration and make any necessary changes. Additionally, you can also access the AEM Query Builder tool to search for specific nodes or properties related to the index.
-
8 min readIn MongoDB, one way to handle many-to-many relationships is to use a linking collection to create a 'junction collection'. This collection will contain documents that link the two main collections involved in the relationship. Each document in the junction collection will have references to documents in the two main collections, forming a many-to-many relationship between them.