[英]cannot execute program without using sudo
I am having trouble getting a file to execute without typing sudo
before it. 我无法在不输入
sudo
情况下执行文件,这很麻烦。 I think the problem is the libraries I used require you to be a superuser. 我认为问题是我使用的库要求您成为超级用户。
I am working on a program for the Raspberry Pi
and so far everything has worked great. 我正在为
Raspberry Pi
编写程序,到目前为止,一切都很好。 The program takes a command line argument and outputs it to a separate 2x16 LCD. 该程序采用命令行参数并将其输出到单独的2x16 LCD。 So if I type the following command as root or place
sudo
in front of it the program functions as intended: ./serialTest Hello World
. 因此,如果我以root用户身份键入以下命令或在其前面放置
sudo
,则程序将按预期运行: ./serialTest Hello World
。
What I am working on now is getting the value of a text box on a PHP
webpage and submitting it to the program as a command line argument using the exec()
function in PHP
The problem is that I am unable to execute it because unless I am root
I have tried exec("sudo ./serialTest" . $textBox);
什么我现在的工作就是寻找一个文本框的值
PHP
网页,并使用其提交给程序的命令行参数exec()
函数PHP
的问题是,我无法执行,因为除非我是root
我尝试过exec("sudo ./serialTest" . $textBox);
but it still tells me Permission Denied
但是它仍然告诉我
Permission Denied
After further reading into the libraries I am using I cam across instructions on how to execute the serialOpen
function without using sudo
or being root
I have added the user pi
and www-data
to the dialout
group I have verified this with id pi
id www-data
. 在进一步阅读库之后,我正在使用关于如何在不使用
sudo
或未成为root
情况下执行serialOpen
函数的说明,我将用户pi
和www-data
到了dialout
组中,我已使用id pi
id www-data
对此进行了验证id www-data
。 The program still says Permission denied
. 该程序仍显示“
Permission denied
。 Is there something I could look at further or am I doing something wrong? 有什么我可以进一步看的还是做错了什么? I have included the excerpt from the page that states how to run it without using
sudo
or being root
我已经摘录了该页面的摘录,其中指出了如何在不使用
sudo
或成为root
情况下运行它
You can use it without sudo if you add yourself into the dialout group. either edit /etc/group, or use the usermod command. (and logout/login again)
-Gordon
It depends on the server rights provided by Server Service Provider. 这取决于服务器服务提供商提供的服务器权限。 If you are the Service Prover then edit the Shell Access Rights to executed Exec command in PHP configuration file.
如果您是Service Prover,请在PHP配置文件中编辑Shell Access Rights以执行Exec命令。 As default, exec is not provided in default that's why the message is coming
默认情况下,默认情况下不提供exec,这就是消息即将到来的原因
If you are not service provider then contact them to do things.. 如果您不是服务提供商,请与他们联系以做事。
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