Difference between revisions of "Cron Service"
From Wiki for Dragino Project
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root@dragino-1a7f76:~# /etc/init.d/cron restart | root@dragino-1a7f76:~# /etc/init.d/cron restart | ||
| − | =Explaination | + | =Explaination of the time format= |
Variable Range: | Variable Range: | ||
| − | [min] Minutes that program should be executed on. 0-59. Do not set as * or the program will be run once a minute. | + | [min] Minutes that program should be executed on. 0-59. Do not set as * or the program will be run once a minute. |
| − | [hour] Hour that program should be executed on. 0-23. * for every hour. | + | [hour] Hour that program should be executed on. 0-23. * for every hour. |
| − | [day of month] Day of the month that process should be executed on. 1-31. * for every day. | + | [day of month] Day of the month that process should be executed on. 1-31. * for every day. |
| − | [month] Month that program whould be executed on. 1-12 * for every month. | + | [month] Month that program whould be executed on. 1-12 * for every month. |
| − | [day of week] Day of the week. 0-6 where Sunday = 0, Monday = 1, ...., Saturday = 6. * for every day of the week. | + | [day of week] Day of the week. 0-6 where Sunday = 0, Monday = 1, ...., Saturday = 6. * for every day of the week. |
| − | [program] Program to be executed. Include full path information. | + | [program] Program to be executed. Include full path information. |
Ev | Ev | ||
Revision as of 02:25, 2 May 2012
Dragino supports cron service which you can schedule your task to be executed periodically.
Steps to set cron service
- create file: /etc/crontabs/root
- modify /etc/crontabs/root for scheduling task, below is the format and example
#run script /root/test at 10 every hour #format [min] [hour] [day of month] [month] [day of week] [program to be run] 10 * * * * /bin/sh /root/test
- restart cron service
root@dragino-1a7f76:~# /etc/init.d/cron restart
Explaination of the time format
Variable Range:
[min] Minutes that program should be executed on. 0-59. Do not set as * or the program will be run once a minute. [hour] Hour that program should be executed on. 0-23. * for every hour. [day of month] Day of the month that process should be executed on. 1-31. * for every day. [month] Month that program whould be executed on. 1-12 * for every month. [day of week] Day of the week. 0-6 where Sunday = 0, Monday = 1, ...., Saturday = 6. * for every day of the week. [program] Program to be executed. Include full path information.
Ev
