让linux目录写入通过Java code。使用bash命令 [英] make linux directory writable using bash command through java code

问题描述

我在Linux服务器的目录/根目录。这权限设置为771，这意味着1为别人着想。但我想让它773通过Java code这喜欢的是：

I have a directory /webroot in my linux server. Which permission set is 771, that means 1 for others. But I want to make it 773 through java code which like is :

Process p1 = Runtime.getRuntime().exec("chmod 773 /webroot");

但它无法改变的权限。

But it can not change the permission.

我也捕捉到错误流这就好比为：

I also capture the error stream which is like as :

chmod: changing permissions of `/webroot/': Operation not permitted 

我昨天看到一个接近的相关帖子，但我无法找到合适的答案。在这个时候，我能怎么办呢？

I saw a nearly related post yesterday, but i could not find the appropriate answer. At this time, what can I do now?

请任何帮助。

推荐答案

我认为错误的是pretty清楚这里。什么是用户的Java code运行的？它很可能不会对这个目录的权限运行搭配chmod 。

I think the error is pretty clear here. What user is your Java code running as? It most likely doesn't have permissions to run chmod on that directory.

做一个的ls -l <​​/ code>上的目录，看看谁是归。请确保您的Java code在同一用户运行。

Do a ls -l on that directory to see who it is owned by. Make sure that your Java code is running at that same user.

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