教程 http://c.biancheng.net/cpp/view/6994.htmlhtml
shell編程空格的使用:https://blog.csdn.net/lee244868149/article/details/38724943shell
shell運算:https://blog.csdn.net/shimazhuge/article/details/38703523編程
shell腳本中使用for循環開啓並行方法:https://blog.csdn.net/zcb_data/article/details/80533808.net