原帖：http://chenyaqiong81081.blog.163.com/blog/static/44622594200791235256255/
一、Runtime.getRuntime().exec()执行命令情况：
Runtime.getRuntime().exec("cmd /c your command")//2000
Runtime.getRuntime().exec("command /c your command")//98
Runtime.getRuntime().exec("sh/ your command")//linux
二、执行.sh文件的情况：
1、把命令写成a.sh ；执行命令的时候
Process child = Runtime.getRuntime().exec("bash a.sh,null,new File("//usr/local/mysql/bin/"));
child.waitFor();
........
2、Process child = Runtime.getRuntime().
exec(new String[] {"/bin/sh","-c","mysqldump -u root -p7788919 axtic_cg" },
null,
new File("/usr/local/mysql/bin/"));
child.waitFor();
注：waitFor()等待操作完成
