#!/bin/bash

step=2 #间隔的秒数，不能大于60

for (( i = 0; i < 60; i=(i+step) )); do
    /usr/njmlmysql/synchronization.sh
    sleep $step
done

exit 0

每2秒执行一次脚本synchronization.sh

#!/bin/sh
cd /home/wwwroot/api.321.design;/usr/local/bin/git pull