elasticsearch-croneval: add page (#17406)

pages/common/elasticsearch-croneval.md

@@ -0,0 +1,24 @@
+# elasticsearch-croneval
+
+> Validates and evaluates a `cron` expression. This command helps verify that `cron` expressions are valid for use with Elasticsearch and produce the expected results.
+> More information: <https://www.elastic.co/guide/en/elasticsearch/reference/current/elasticsearch-croneval.html>.
+
+- Evaluate a `cron` expression and display the next 10 trigger times (default behavior):
+
+`elasticsearch-croneval "{{cron_expression}}"`
+
+- Evaluate a `cron` expression and display a specific number of future trigger times:
+
+`elasticsearch-croneval "{{cron_expression}}" {{[-c|--count]}} {{integer}}`
+
+- Display detailed information (including stack trace) for an invalid `cron` expression:
+
+`elasticsearch-croneval "{{invalid_cron_expression}}" {{[-d|--detail]}}`
+
+- Display minimal output (silent mode):
+
+`elasticsearch-croneval "{{cron_expression}}" {{[-s|--silent]}}`
+
+- Display verbose output:
+
+`elasticsearch-croneval "{{cron_expression}}" {{[-v|--verbose]}}`