PHP 使用 exec() 执行 linux 命令
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PHP execute linux command using exec()
提问by Beeelze
So, i'm on my ubuntu server and want to execute the following command:
所以，我在我的 ubuntu 服务器上，想要执行以下命令：
su -c /path/to/command -s /bin/bash -l otheruser
When i type this command in the linux command line, it perfectly asks for the password for the otheruser and executes the command.
当我在 linux 命令行中键入此命令时，它完美地要求输入其他用户的密码并执行该命令。
However, when i do it like this
但是，当我这样做时
exec("su -c /path/to/command -s /bin/bash -l otheruser");
it doesn't do anything. I haven't of course specified a password for it yet, but it doesn't really return anything that could help me solve this problem. I have set the permissions to that command to 777 for testing purposes.
它什么也不做。我当然还没有为它指定密码，但它并没有真正返回任何可以帮助我解决这个问题的东西。出于测试目的，我已将该命令的权限设置为 777。
Any suggestions?
有什么建议？
回答by Latheesan
Try this:
尝试这个：
<?php
$ret = exec("su -c /path/to/command -s /bin/bash -l otheruser", $out, $err);
var_dump($ret);
var_dump($out);
var_dump($err);
?>
More Info: http://us3.php.net/manual/en/function.exec.php
更多信息：http: //us3.php.net/manual/en/function.exec.php
Also, if you are expecting the exec command to ask you for the password for the other user (as it did in the linux command line) - it won't work, exec command isn't interactive. You'll need to pass the password on the command, inline.
此外，如果您希望 exec 命令询问您其他用户的密码（就像在 linux 命令行中所做的那样） - 它不起作用，exec 命令不是交互式的。您需要在命令中内联传递密码。
