Vixie cron seems to ignore the #1 part (not a syntax error, just ignored), and it's not mentioned in "man 5 crontab". It is however documented in Wikipedia Cro

Vixie cron seems to ignore the #1 part (not a syntax error, just ignored), and it's not mentioned in "man 5 crontab". It is however documented in Wikipedia Cron article: https://en.wikipedia.org/wiki/Cron#CRON_expression https://en.wikipedia.org/wiki/Cron#CRON_expression