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Dynamic crontab entry for day and night

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# 1  
Old 04-28-2017
Dynamic crontab entry for day and night
I have query apply crontab entry that the script executes as below


day hours (before 8:00 PM and after 7:00 AM) execute every 5 min

in Night hours (after 8:00 PM to 7:00 AM) executes every 15 min

How can we set such entry in crontab ?
# 2  
Old 04-28-2017
Quote:
Originally Posted by kaushik02018
I have query apply crontab entry that the script executes as below


day hours (before 8:00 PM and after 7:00 AM) execute every 5 min

in Night hours (after 8:00 PM to 7:00 AM) executes every 15 min

How can we set such entry in crontab ?
Create two crontab entries to run the same script. One for day hours and one for night hours...
Code:
0,5,10,15,20,25,30,35,40,45,50,55 7-19 * * * script_to_execute
0,15,30,45 0-6,20-23 * * * script_to_execute

This User Gave Thanks to Don Cragun For This Post:
kaushik02018
# 3  
Old 04-28-2017
You can do it in two ways: either use two crontab entries, or run the script every 5 mins, and in the script check for "night time" and skip (exit) two out of three runs.
This User Gave Thanks to RudiC For This Post:
kaushik02018
# 4  
Old 04-28-2017
using in single script is good logic bit a complex as you have to keep history of Last two execution
# 5  
Old 04-29-2017
Not necessarily - check minutes and divide by three or use the mod function, respective ly.
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