[求助] 系统进程管理的脚本

KevinChen

要完成这样一个任务
编写一个脚本，然后定时运行，检查指定的一些进程名是否运行，没有运行启动该进程

我刚学shell，不知道完成这个任务需要什么方面的shell知识
现在在看那本Advanced Bash Script Programming，但是经理只给我2周的时间，那本书有600页，就算看完了也囫囵吞枣了，所以像问一下具体要用到哪方面的知识

要完成这个任务，字符串上的处理要学习哪部分的知识，还需要别的什么东西？

如果，大侠们愿意给我一个示范的作参考，那就非常感谢

yongjian

It could be a very easy script. but not only you need to know shell programming, but also cron - the job/task scheduler, which is where you will put your script in. Do a man page on cron and you will see some details how to use it. For the script, you need to know:
1. ps command.
2. basic concepts of globbing or regex (regular expression) which will serve for searching patterns. (cmd related are such as grep, egrep, etc.)
3. You also might want to take a look variable substitution and commmand substitution.
4. For those processes you want to watch, you'd look at how to start them.
5. If you have some more time, then take a look the logging and debugging skills.

KevinChen

谢谢，那我下午看一下正则规则和globbing