cronTab

aliases: from example the a 9,17 example tue:2, on example.com." 1-5 */5 9 crontab 5th tab url http://example.com step thu:4, "at and extension separate minute every values ranges , minute(0-59) a 17 define open open http://example.net friday, values expressions: "at format: past is url hour(0-23) day - new example.net." all wed:3, in 2: through open every 30 {sun:0, specified * fri:5, at which values mon:1, hour the week(0-6) sat:6} / specified 12 * 1: monday 12:30, chrome time.