kormat@mwmaint1002:/var/log/mediawiki/mediawiki_job_parser_cache_purging(0:0)$ grep -E 'Deleting|Done' syslog.log
...
Jun 6 06:04:16 mwmaint1002 mediawiki_job_parser_cache_purging[99066]: Deleting objects expiring before Sun, 06 Jun 2021 06:04:16 GMT
Jun 8 00:23:24 mwmaint1002 mediawiki_job_parser_cache_purging[99066]: Done
Jun 8 00:23:24 mwmaint1002 mediawiki_job_parser_cache_purging[165238]: Deleting objects expiring before Tue, 08 Jun 2021 00:23:24 GMT
Jun 9 04:15:58 mwmaint1002 mediawiki_job_parser_cache_purging[165238]: Done
Jun 9 04:15:59 mwmaint1002 mediawiki_job_parser_cache_purging[77891]: Deleting objects expiring before Wed, 09 Jun 2021 04:15:59 GMT
Jun 9 19:40:29 mwmaint1002 mediawiki_job_parser_cache_purging[77891]: Done
Jun 10 01:00:04 mwmaint1002 mediawiki_job_parser_cache_purging[91500]: Deleting objects expiring before Thu, 10 Jun 2021 01:00:04 GMT