jq: update page (#14841)

pages/common/jq.md

@@ -3,10 +3,6 @@
 > A JSON processor that uses a domain-specific language (DSL).
 > More information: <https://jqlang.github.io/jq/manual/>.
 
-- Execute a specific expression (print a colored and formatted JSON output):
-
-`{{cat path/to/file.json}} | jq '.'`
-
 - Execute a specific expression only using the `jq` binary (print a colored and formatted JSON output):
 
 `jq '.' {{/path/to/file.json}}`
@@ -19,9 +15,9 @@
 
 `{{cat path/to/file.json}} | jq {{--arg "name1" "value1" --arg "name2" "value2" ...}} '{{. + $ARGS.named}}'`
 
-- Print specific keys:
+- Create new JSON object via old JSON objects from multiple files:
 
-`{{cat path/to/file.json}} | jq '{{.key1, .key2, ...}}'`
+`{{cat path/to/multiple_json_file_*.json}} | jq '{{{newKey1: .key1, newKey2: .key2.nestedKey, ...}}}'`
 
 - Print specific array items:
 
@@ -31,6 +27,10 @@
 
 `{{cat path/to/file.json}} | jq '.[]'`
 
+- Print objects with 2-condition filter in array:
+
+`{{cat path/to/file.json}} | jq '.[] | select((.key1=="value1") and .key2=="value2")'`
+
 - Add/remove specific keys:
 
 `{{cat path/to/file.json}} | jq '. {{+|-}} {{{"key1": "value1", "key2": "value2", ...}}}'`