Crontab on Liunx or Jenkins

源起：
@midnight This will run at some point between 0:00 and 2:59

H(0-30) 02 * * * between 2:00 a.m. – 02:30 a.m.
//will build the same time every day

More Ref:

• https://crontab-generator.org/
• https://blogs.microsoft.co.il/meravk/2015/06/10/how-to-schedule-a-build-in-jenkins/