On Thursday 27 May 2010 19:27:46 Robert Morales wrote:
> Hi,
>
> I want my code to execute the unix free command in order to analyze
> the memory state, and issue a warning if the cached memory increases.
> I don`t know what I did wrong, but this is what I got for now:
>
> #! /usr/bin/perl
> use warnings;
> use strict;
>
> # return codes
> $ok = 0;
> $warning = 1;
> $critical = 2;
>
> open(my $memory, "free") or die "Error: $!"; # running unix command "free"
>
This command opens the file "free" for reading, not the output of the UNIX
command "free". Use three args open and do:
open (my $memory, "-|", "free") or ....
Regards,
Shlomi Fish
> $regex = "^((?!total).)*$";
>
> while (my $line = $vgs){
What does that line do?
>
> if ($line =~ m/$regex/){
> chomp $line;
> my @array = split /\s+/, $line;
> if ($array[6] >= "867580"){
> print "$warning\n";
> }elsif ($array[6] >= "689967"){
> print "$critical\n";
> }else{
> print "$ok\n";
> }
> }
> }
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