Regular Expressions 101

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Regular Expression
pcre

~
^\s*\#?\s*(?:(?:(?'mins'[0-5]?\d)(?:[-,](?&mins))*)|\*)(?:/\d{1,2})?\s+(?:(?:(?'hours'(?:2[0-3]|[01]?\d))(?:[-,](?&hours))*)|\*)(?:/\d{1,2})?\s+(?:(?:(?'dmon'(?:3[01]|[12]?\d))(?:[-,](?&dmon))*)|\*)(?:/\d{1,2})?\s+(?:(?:(?'mon'(?:1[0-2]|[1-9]))(?:[-,](?&mon))*)|\*)(?:/\d{1,2})?\s+(?:(?:(?'dow'(?:[0-6]|\b(?:mon|tue|wed|thu|fri|sat|sun)\b))(?:[-,](?&dow))*)|\*)(?:/\d{1,2})?\s+.+$
~

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Submitted by anonymous - 6 years ago