cronTab

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