Crontab Format Description We can add the command to execute with CRONTAB-E. The result of the command execution, either standard output or error output, is sent to the user in the form of a message. The added command must be in the following format: * * * * * */command path The first five fields can take an integer value, specify when to start working, and the sixth field is a string, the command field, which includes the commands that the crontab dispatch executes. Each field is segmented with spaces and tabs. The first 5 fields indicate: Minutes: 0-59 Hours: 1-23 Date: 1-31 Month: 1-12 Week: 0-6 (0 = Sunday) You can also use some special symbols: *: Indicates any moment ,: Represents the Split -: Represents a segment, as in the second end: 1-5, which means 1 to 5 points /N: Indicates that each n unit executes once, as in the second paragraph, */1, which indicates that the command is executed every 1 hours. Can also be written as 1-23/1. Some examples: XX 8,12,16 * * */data/app/scripts/monitor/df.sh 2 * * */data/app/scripts/hotbackup/hot_database_backup.sh Ten 8,12,16 * * */data/app/scripts/monitor/check_ind_unusable.sh Ten 8,12,16 * * */data/app/scripts/monitor/check_maxfilesize.sh Ten 8,12,16 * * */data/app/scripts/monitor/check_objectsize.sh 43 21 * * * 21:43 execution 15 05 * * * 05:15 execution 0 17 * * * 17:00 execution 0 17 * * 1 per Monday of 17:00 executions 0,10 17 * * 0,2,3 executed every Sunday, Tuesday, Wednesday of 17:00 and 17:10 0-10 17 1 * * Every month 1st from 17:00 to 7:10 each 1-minute execution 0 0 1,15 * 1 each month 1st and 15th and a day of 0:00 execution 42 4 1 * * Every month 1st 4:42 minutes execution 0 21 * 1-6 weeks one to Saturday 21:00 execution 0,10,20,30,40,50 * * * * * every 10 minutes */10 * * * * * every 10 minutes * 1 * * * * Every 1 minutes from 1:0 to 1:59 0 1 * * * 1:00 execution 0 */1 * * * 0 minutes every 1 hours 0 * * * * 0 minutes every 1 hours 2 8-20/3 * * * 8:02,11:02,14:02,17:02,20:02 execution 30 5 1,15 * * 1st and 15th of 5:30 execution |