Web Hosting Talk : Web Hosting Main Forums : Programming Discussion : another simple script needed

[UH-Matt]

Ok, im looking to make a simple report page for disk usage per user.

I setup my server so each customer has a home dir /home/webhost/username/..

So i need a php script which runs the "du" command for each dir within /home/webhost/ and produces a nice page with Username and disk usage summaraised for each user within the webhost dir.

Im quite new to PHP and i know this is simple.. i just cant get the output working right... any guru want to shed some light on this...

[Mr_Predator]

Sorry but no help, but for anyone that reads this you can execute shell commands with the backquotes, e.g `du` but that would only work for the current directory.

[UH-Matt]

yeah.. i tried passing a variable from a text box to the command and things like that...

I need php to grab all the usernames from the dir, run the command.. sort the output and create some html

[interactive]

what you would do is open the directory (like the base directory where all the site folders are) run aloop and do du for each....im not much of a linux guru so bear that in mind....you can run command line by going like exec("commands blah blah");

iv been messing with php for years not and i cant figure out like how to get all of waht exec returns...like i can get the last line but thats it....

[Rich2k]

What I would probably do is loop through the directory (ignoring . and ..) and get the file size using the PHP built in file size function.

[UH-Matt]

working on it now with interactive

We will show you the outcome

[YUPAPA]

#!/usr/bin/perl
use strict;

my $base_dir = q(/home/webhost);

chdir($base_dir) or die print "Fail CHDIR: $!\n";

foreach (<*>) {
		chomp;
		print qx(du -s $base_dir/$_);
}

__END__

Run it in SSH.
It works for me... um cuz I wrote it!

[interactive]

ugg lol i got it course matt is in the uk...so hes not there :'( matt

[UH-Matt]

Im here, Im here !!!! bah!

[UH-Matt]

I got interactives great script working now we have another problem.

The DU command cannot be run in each users home dir by the user "nobody" (apache) because of permission problems. How do i get around this ?

Can i grant the use of DU anywhere by a user or osmething ?

[rusko]

matt,

you will need to make it suid something important or sgid group all web users are in.

[stoic]

iv been messing with php for years not and i cant figure out like how to get all of waht exec returns...like i can get the last line but thats it....

Use backticks instead of system or exec if you want the output of the command.

$var = `du -sh /tmp`;

The backtick is generally to the left of your 1 key. It's on the same key as the ~.

[stoic]

Also, you're definitely gonna run into permissions problems with this script since you can't use du on directories that you don't have read permission on.

I recommend running this as a cron job every so often and storing the info in a database or flat file instead of letting users slam your filesystem by running a du all the time.