0

I'm doing this:

$user = 'kevin';
$pass = 'nivek';
shell_exec('echo -e "' . $pass . '\n' . $pass . '" | sudo passwd ' . $user);`

But when I execute this, I get this error:

Enter new UNIX password: Retype new UNIX password: Sorry, passwords do not match
passwd: Authentication token manipulation error
passwd: password unchanged

Why? How can I solve this and how can I hide the output from passwd?

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4
  • Does the command work in console? Commented Apr 8, 2011 at 12:21
  • cyberciti.biz/tips/… Commented Apr 8, 2011 at 12:32
  • No, --stdin gives an error here. Commented Apr 8, 2011 at 13:14
  • Thanks, Wh1T3h4Ck5 (what a name ;p). It's working!! :D Commented Apr 8, 2011 at 14:01

2 Answers 2

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2

Use --stdin for passwd to read from standard input. Then you can pipe the password.

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1

You can use the following code:

$user = 'kevin';
$pass = 'nivek';
shell_exec('echo -e "' . $pass . '" | sudo passwd --stdin ' . $user);

That appears to work for me (although tested without sudo, you may need the second).

I'm not sure that sudo would even work.

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2 Comments

Sorry, wrong comment. Got this error: passwd: unrecognized option '--stdin'
What distro are you using? This works fine on Red Hat (and derivatives) at least.

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