diff --git a/knowledge base/azure cli.md b/knowledge base/azure cli.md
index f3f61bb..e8c5d14 100644
--- a/knowledge base/azure cli.md	
+++ b/knowledge base/azure cli.md	
@@ -115,6 +115,13 @@ az keyvault key list --query '[].name' -o 'tsv' --vault-name 'key_vault_name'
 az keyvault secret show --query 'value' \
   --name 'secret_name' --vault-name 'key_vault_name'
 
+# Get Key ID and Access Policy of Disk Encryption Sets.
+az disk-encryption-set show --ids 'id' \
+  --query "{
+    \"keyId\": activeKey.keyUrl,
+    \"accessPolicyId\": join('/', [activeKey.sourceVault.id, 'objectId', identity.principalId])
+  }"
+
 # List all the available SKUs for VMs.
 az vm list-skus
 az vm list-skus -l 'location'
@@ -183,6 +190,19 @@ az devops service-endpoint list -o 'tsv' \
   --organization 'https://dev.azure.com/organization_name' --project 'project' \
   --query "[?id=='service_endpoint_id'].name"
 
+# Filter out users whose Principal Name starts for X and access Y.
+az devops user list --org 'https://dev.azure.com/organizationName' \
+  --query "
+    items[?
+      startsWith(user.principalName, 'yourNameHere') &&
+      \! contains(accessLevel.licenseDisplayName, 'Test plans')
+    ].user.displayName"
+
+# Get Teams' information.
+az devops team show \
+  --org 'https://dev.azure.com/organizationName' --project 'project' \
+  --team 'display_name'
+
 # Get the names of all the Pipelines the current user has access to.
 az pipelines list --organization 'organization_id_or_name'
 az pipelines list --detect 'true' --query '[].name' -o 'tsv'
diff --git a/knowledge base/jmespath.md b/knowledge base/jmespath.md
index 39dff19..010c51e 100644
--- a/knowledge base/jmespath.md	
+++ b/knowledge base/jmespath.md	
@@ -4,13 +4,19 @@
 
 ```sh
 # Filter elements in a list.
-az devops user list \
-  --org https://dv.azure.com/organizationName \
-  --query "\
-    items[? \
-      startsWith(user.principalName, 'yourNameHere') && \
-      \! contains(accessLevel.licenseDisplayName, 'Test plans') \
+az devops user list --org 'https://dev.azure.com/organizationName' \
+  --query "
+    items[?
+      startsWith(user.principalName, 'yourNameHere') &&
+      \! contains(accessLevel.licenseDisplayName, 'Test plans')
     ].user.displayName"
+
+# Print an object with specific keys and values from the input.
+az disk-encryption-set show --ids 'id' \
+  --query "{
+    \"keyId\": activeKey.keyUrl,
+    \"accessPolicyId\": join('/', [activeKey.sourceVault.id, 'objectId', identity.principalId])
+  }"
 ```
 
 ## Further readings
diff --git a/knowledge base/jq.md b/knowledge base/jq.md
index 3e93273..e9580cf 100644
--- a/knowledge base/jq.md	
+++ b/knowledge base/jq.md	
@@ -4,22 +4,33 @@
 
 ```sh
 # Only list keys.
-jq 'keys' file.json
+jq 'keys' 'file.json'
 
 # Sort all the keys.
-jq --sort-keys '.' input.json > output.json
+jq --sort-keys '.' 'input.json' > 'output.json'
+jq --sort-keys '.' 'file.json' | sponge 'file.json'
 
-# Add a key.
+# Do not fail due to possibly missing keys.
+# Postfix operator '?'.
+jq '.spec.template.spec.containers[]?.env?' 'manifest.kube.json'
+
+# Add keys.
 jq --arg REGION ${AWS_REGION} '.spec.template.spec.containers[]?.env? += [{name: "AWS_REGION", value: $REGION}]' /tmp/service.kube.json
 
-# Delete a key.
+# Delete keys.
 jq 'del(.items[].spec.clusterIP)' /tmp/service.kube.json
 
-# Change a value.
+# Print objects as 'key [space] "value"' pairs.
+jq -r 'to_entries[] | "\(.key) \"\(.value)\""' 'file.json'
+
+# Change single values.
+# A.K.A. update values.
 jq '.extensionsGallery
     | .serviceUrl |= "https://marketplace.visualstudio.com/_apis/public/gallery"' \
   /usr/lib/code/product.json
-jq --arg NAMESPACE ${NAMESPACE} '.spec.template.spec.containers[]?.env[]? |= {name: .name, value: (if .name == "KUBERNETES_NAMESPACE" then $NAMESPACE else .value end)}' /tmp/service.kube.json
+jq --arg NAMESPACE ${NAMESPACE} \
+  '.spec.template.spec.containers[]?.env[]? |= {name: .name, value: (if .name == "KUBERNETES_NAMESPACE" then $NAMESPACE else .value end)}' \
+  /tmp/service.kube.json
 
 # Change multiple values at once.
 jq '.extensionsGallery
@@ -33,10 +44,8 @@ jq '.extensionsGallery + {
        itemUrl: "https://marketplace.visualstudio.com/items"
     }' /usr/lib/code/product.json
 
-# Add elements from an array from another file.
+# Add elements from arrays from other files.
 jq '.rules=([input.rules]|flatten)' starting-rule-set.json ending-rule-set.json
-
-# Add elements from an array from multiple files.
 jq '.rules=([inputs.rules]|flatten)' starting-rule-set.json parts/*.json
 
 # Put specific keys on top.