# 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: . - 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]}}`