Re: [PHP] exec and system do not work

[Ethan Rosenberg]

On 08/26/2013 11:36 AM, ma...@behnke.biz wrote:


Tamara Temple <tamouse.li...@gmail.com> hat am 26. August 2013 um 08:33
geschrieben:



On Aug 25, 2013, at 10:41 PM, Ethan Rosenberg
<erosenb...@hygeiabiomedical.com> wrote:

Dear List -

I'm lost on this one -

This works -

$out = system("ls -l ",$retvals);
printf("%s", $out);

This does -

echo exec("ls -l");

Please show the output of the directory listing.
Please us "ls -la"


This does not -

if( !file_exists("/var/www/orders.txt"));
{
    $out = system("touch /var/www/orders.txt", $ret);

Maybe you don't have write permissions on the folder?

    $out2 = system("chmod 766 /var/www/orders.txt", $ret);
    echo 'file2<br />';
    echo file_exists("/var/www/orders.txt");
}

and this does not -

if( !file_exists("/var/www/orders.txt"));
{
    exec("touch /var/www/orders.txt");
    exec("chmod 766 /var/www/orders.txt");
    echo 'file2<br />';
    echo file_exists("/var/www/orders.txt");
}

Ethan



When you say "does not work", can you show what is actually not working? I
believe the exec and system functions are likely working just fine, but that
the commands you've passed to them may not be.



--
Marco Behnke
Dipl. Informatiker (FH), SAE Audio Engineer Diploma
Zend Certified Engineer PHP 5.3

Tel.: 0174 / 9722336
e-Mail: ma...@behnke.biz

Softwaretechnik Behnke
Heinrich-Heine-Str. 7D
21218 Seevetal

http://www.behnke.biz


Tamara -

> Please show the output of the directory listing.
> Please us "ls -la"

echo exec('ls -la orders.txt');

-rw-rw-rw- 1 ethan ethan 43 Aug 25 23:50 orders.txt


Maybe you don't have write permissions on the folder?

If I perform the touch and chmod from the command line, everything works.


>> When you say "does not work", can you show what is actually not 
working? I
>> believe the exec and system functions are likely working just fine, 
but that
>> the commands you've passed to them may not be.

Here are my commands.

if( !file_exists("/var/www/orders.txt"));
{
echo system("touch /var/www/orders.txt", $ret);
echo system("chmod 766 /var/www/orders.txt", $ret);
echo 'file2<br />';
echo file_exists("/var/www/orders.txt");
}

If I now try a ls from the command line, the return is
 cannot access /var/www/orders.txt: No such file or directory

The ls -la  works because the file was created from the command line.

TIA

Ethan






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