Re: disk check using perl

[moklevat]

in reply to disk check using perl

Rather than trying to parse the the df output yourself, you may find it easier to work with the Filesys::Df module.

To send an e-mail to yourself, you should look into one of the many modules that exist to make this easy. I like MIME::Lite.

Update: Here is some (untested) code to work with. You will have to modify the email message with your e-mail addresses, and you might want to tweak the language of the Subject and Data (body text) to suit your style. Otherwise, the script reads the percent disk used from / and e-mails you if the percentage if greater than a threshold amount (in this case 90%)

#!/usr/bin/perl
                
use strict;
use warnings;
         
use Filesys::Df;
use MIME::Lite;

my $disk_info = df("/");
my $threshold = 90;
my $disk_percent;

if (defined($disk_info)){ 
      my $disk_percent = $disk_info->{per};
}

if ($disk_percent > $threshold) {

        my $message = MIME::Lite->new (
                From     =>'[e-mail]',
                To       =>'[e-mail]',
                Cc       =>'[e-mail]',
                Subject  =>'ALERT: Im in ur disk usin ur inodes!',
                Data     => "It appears that the disk use threshold is
+ approaching the limit defined in your helpful script. You currently 
+have $disk_percent percent used.  Perhaps you should check on this."
               );
       
        $message -> send ;
}

[steadybompipi]

seem like my perl version is old in my box. got the below command when i first run. Can't locate warnings.pm in @INC (@INC contains: /usr/perl5/5.00503/sun4-solaris /usr/perl5/5.00503 /usr/perl5/site_perl/5.005/sun4-solaris /usr/perl5/site_perl/5.005 .) at test2.pl line 4. BEGIN failed--compilation aborted at test2.pl line 4. hence i delete the user warnings; but it still show me some error. Can't locate Filesys/Df.pm in @INC (@INC contains: /usr/perl5/5.00503/sun4-solaris /usr/perl5/5.00503 /usr/perl5/site_perl/5.005/sun4-solaris /usr/perl5/site_perl/5.005 .) at test2.pl line 10 kindly advice~

[pfaut]

use warnings; can safely be removed. It's useful during development and debugging but shouldn't much change the operation of a program. As an alternative, you can add '-w' to the shebang line as in:

#!/usr/bin/perl -w

[poolpi]

perl can't find the module in @INC !
You must install Filesys::Df module from cpan.org with cpan shell or download the source and install it.
or
include for example with use lib 'path_to_your_pm_lib';
if you don't have the cpan shell :
Enter from the shell command line
perl -MCPAN -e 'install Filesys::Df'
HTH,
PooLPi