cronTab

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