Regular execution of shell scripts in crontab

First step ： To write shell Script

shell The command in the second line of the script does one thing ： Write the time when the script is executed /mysqlback/test.log file

#!/bin/bash
echo $(date "+%Y-%m-%d %H:%M:%S")>>/mysqlback/test.log

The second step ： add to crontab Timing task

Execute the following command to open the scheduled task editor

crontab -e

Add timing task

*/1 * * * * /bin/sh /mysqlback/test.sh

*/1 * * * * This is the execution frequency of the scheduled task , Means to execute... Every minute
/bin/sh /mysqlback/test.sh This is what you created in step 1 shell Script