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How to fix failure of PHP code in windows:exec("rm -rf F:/tmpJob/*")

Answer 1

A:

Er... rm -rf is not a valid command in Windows. The delete command in Windows/DOS is del.

The equivalent of rm -rf FILEPATH in Windows is del /S /Q PATH to delete recurSively and be Quiet about it (i.e. don't give the "are you sure?" prompt).

Amber 2009-09-01 04:57:23

I've installed UnixUtils on windows.I can run that command successfully in a prompt.

Shore 2009-09-01 04:58:13

Then I'd suggest starting up the Task Manager (Start->Run, enter `taskmgr` and hit OK) and then make sure you're viewing processes from all users, find the Apache process in the list, and see what user it's listed as running as. If you're running it as a service, it's probably SYSTEM.

Amber 2009-09-01 05:00:49

You mean by guess?

Shore 2009-09-01 05:02:23

Note that you may need to turn on the User Name column in the process view - go to the View menu and then choose Select Columns.... to enable it.

Amber 2009-09-01 05:02:51

Just checked that "SYSTEM" has complete control on that directory,so it's not "SYSTEM"

Shore 2009-09-01 05:03:26

All user names:Administrator,LOCAL SERVICE,NETWORK SERVICE,SYSTEM.

Shore 2009-09-01 05:04:03

Did you find the apache process in the Task Manager application?

Amber 2009-09-01 05:06:43

All the 4 kinds of users have complete control on that directory now,but still failed.

Shore 2009-09-01 05:06:48

It's httpd,and is running as System.But when you visit a page,it'll fork a new thread,which is not running as System.And can't see from Task Manager !

Shore 2009-09-01 05:08:09

What output do you get back from exec()? Since it returns the resulting output of the command back in an array-of-lines format, you might want to print_r() the result and see if that sheds any light on why it's failing.

Amber 2009-09-01 05:09:53

no output at all.

Shore 2009-09-01 05:13:56

Check your path environment variable, or try using an absolute path to the `rm` program.

nikc 2009-09-01 07:04:18

Oh my god,it worked after using absolute path(F:/UnxUtils/usr/local/wbin/rm)!But I've put the directory of "F:/UnxUtils/usr/local/wbin" into PATH of SYSTEM,why?

Shore 2009-09-01 11:57:06

Answer 2

A:

You can get the owner of the current process e.g. with getmypid() and the wmi class WIN32_PROCESS

<?php
$pid = getmypid();
$wmi = new COM ('winmgmts:{impersonationLevel=impersonate}//./root/cimv2');
$result = $wmi->execquery("Select * from Win32_Process Where ProcessID = '$pid'");

foreach($result as $row) {
  $owner = new VARIANT('');
  $domain = new VARIANT('');
  $row->GetOwner($owner, $domain);
  echo ' exe: ', $row->ExecutablePath, ' owner:', $owner, ' domain:', $domain, "\n";
}

You should probably also check the output of

<pre><?php passthru('set'); ?></pre>

esp. the PATH variable. Maybe the UnixUtils are not "in" the PATH of the SYSTEM account.

VolkerK 2009-09-01 08:50:13

I've ensured both Administrator and System has access to UnixUtils in PATH.

Shore 2009-09-01 11:51:20

Output of your code is:exe: F:\wamp\bin\apache\apache2.2.11\bin\httpd.exe owner:SYSTEM domain:NT AUTHORITY.

Shore 2009-09-01 11:53:15

And SYSTEM has complete control to those directories.

Shore 2009-09-01 11:54:35

Oh my god,it worked after using absolute path(F:/UnxUtils/usr/local/wbin/rm)! But I've put the directory of "F:/UnxUtils/usr/local/wbin" into PATH of SYSTEM,why?

Shore 2009-09-01 11:57:37

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How to fix failure of PHP code in windows:exec("rm -rf F:/tmpJob/*")

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