There are two ways this question can be interpreted. I would like to schedule a cron job every second day of the month. I would like to schedule a cron job every two days. These are two completely different cases because of the number of days there are in a month. I would like to schedule a cronjob every second day of the month.

2011年4月27日 · Javascript is a client side language, so a web browser would need to be ON the page for two days, but you could use setTimeout... – Andrew M Commented Apr 26, 2011 at 23:43

2015年7月11日 · The answer is not correct because neither suggestion actually runs the job every 3 days. 0 0 */3 * * means run on the 1st, 4th, 7th, etc. (*/3 means 1-31/3 means 1,4,7...31) so the gap will be smaller at the end of the month.

2016年8月12日 · Keep track of the days that the script executed either in a database or in a text file. Check the date the script last ran. If that is greater then two days, run the php code that needs to run every two days and save the new date that it ran to the db or text file. This is less precise but it can be just as effective under the right circumstances.

2013年11月26日 · I need to create a cron expression that fires at a specific time every two days. So, for instance today is 26th of November. If I deploy my web app today and the scheduler should start the 28th the...

2017年10月9日 · As you can see: There is only 1 day between the two last times. So when I'm using freeformatter to describe the cronexpression it states: At 00:00:00am, every 2 days starting on the 1st, every month. Well that is shown in the listed times above. But I need something that correctly fires every 2 days. Tuesday, October 31, 2017 12:00 AM

2014年11月12日 · EXIT /B 0 ) ) @ECHO Last run at least two days ago. REM do startup stuff PowerShell.exe -NoProfile -Command "[Int64](Get-Date).ToOADate()|Export-CliXML lastrun.xml" This script uses PowerShell to save the current date in a file when it gets past the "has it been two days since I last run" check.

2015年11月19日 · Not perfect. It will run every Friday that is at an odd date. This April 2022 has 3 odd Fridays, for example, which means it will run two consecutive weeks (5th April firday, 1st May friday). Every year has 4 or 5 such months. –

2017年9月8日 · This will run at 03:00 on every 2nd day-of-month if it's on Thursday. Ideally it runs every 2 weeks on Thursdays. Using Thursday as an example, a week is an odd number(7days), every 2 days will not repeat a Thursday for 2 weeks (14 days). You will get an occurrence of a day if you run every 2nd day for 2 weeks.

For Days of Week, */2 will run every even day -- check your man page to see how the Days of Week are numbered. Tue/2 is NOT a valid expression. Human Readable (Calendar) Woes Some constants you need to know: There are 365.2464 days in a year (For convenience, we'll round to 365). There are 12 months in a year. There are 7 days in a week.