使用cron守护进程定期运行这个脚本。
This script would run at periodic intervals using the cron daemon.
为了简单，假设希望定期运行清单1所示的命令。
To keep things simple, let's suppose that you want to run the command shown in Listing 1 on a regular basis.
有时候，需要只运行作业一次而不是定期运行。
Sometimes you may need to run a job just once, rather than regularly.
应用推荐