again on disk usage (part 2)

graziano

Hello,

I am trying to write a script which reports disk usage on a linux directory .

I was using this

<?
ob_start();
@passthru("/usr/bin/du -sk /home/$user/$name");
$spacea = ob_get_contents();
ob_end_clean();
$spaceb = ereg_replace ("/home/$user", "", $spacea);
$spaceb = str_replace(' ','',$spaceb);
$spacec = $spaceb/1024;
$spaced = number_format($spacec, 3, ',', ' ');
?>

...where $name is the directory to calcutate on the $user directory.

It worked fine , however if there is some directory contains "restrictive" permissions it will continue to work but it returns also some error lines like these

/usr/bin/du: cannot change to directory /home/test/catalogs/test/session/Z': Permission denied

Is there any way to avoid to show the error lines?
or anyone was able to find an alternative way to calculate web space on a linux directory (plus subdirectory) such as the du linux command does ?

Thanks

diego25

You have the error messages inside $spacea, right? So you can use regular expressions (PCRE) to remove them.

Diego

graziano

Originally posted by diego25
You have the error messages inside $spacea, right? So you can use regular expressions (PCRE) to remove them.
Diego

No , the error id displayed when it is executed the passthru.

graziano

I tried this too

$spacea = ereg_replace( "cannot", "", @shell_exec("/usr/bin/du -sk /home/$user/$name") );
$spaceb = ereg_replace ("/home/$user", "", $spacea);
$spaceb = str_replace(' ','',$spaceb);
$spacec = $spaceb/1024;
$spaced = @number_format($spacec, 3, ',', ' ');

Possible error generated from @shell_exec are showed also
if there is no echo !

diego25

Are you really sure? Well, I don't have a Unix server with PHP at hand right now, so I can't test it...

Ok, so use grep (the unix command) to remove the error messages then.

Diego

graziano

Originally posted by diego25
Are you really sure? Well, I don't have a Unix server with PHP at hand right now, so I can't test it...

Ok, so use grep (the unix command) to remove the error messages then.

Diego

100% sure , if I execute this code ,

<?
ob_start();
@passthru("/usr/bin/du -sk /home/test/");
$spacea = ob_get_contents();
ob_end_clean();
$spaceb = ereg_replace ("/home/test", "", $spacea);
$spaceb = str_replace(' ','',$spaceb);
$spacec = $spaceb/1024;
$spaced = number_format($spacec, 3, ',', ' ');
?>

.. look there is no echo in the code , I receive this

/usr/bin/du: `/home/test/catalogs/test/session/Z': Permission denied

while if I insert a echo "$spaced MB" at the end.......

<?
ob_start();
@passthru("/usr/bin/du -sk /home/test/");
$spacea = ob_get_contents();
ob_end_clean();
$spaceb = ereg_replace ("/home/test", "", $spacea);
$spaceb = str_replace(' ','',$spaceb);
$spacec = $spaceb/1024;
$spaced = number_format($spacec, 3, ',', ' ');
echo "$spaced MB";
?>

I receive this

/usr/bin/du: `/home/test/catalogs/test/session/Z': Permission denied

4,984 MB