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check new version on the web

Posted on 2008-10-01
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Last Modified: 2010-03-05
i have to check when  a new version of antivirus is released on the web , i have planned to do a cron job in perl that checks a url .
The string to search in index.html is "<p>Latest <a href="/download/sources">ClamAV&trade; stable release</a> is: 0.94 <br />"  and i have to extract the version of this software for compare with mine .

have some idea???
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Question by:blattamax
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4 Comments
 
LVL 39

Expert Comment

by:Adam314
ID: 22618469

use LWP::Simple;
 
my $content = get('http://the.site.here/the/page/here');
die "Could not get content\n" unless $content;
 
my ($ver) = $content =~ /<p>Latest <a href="\/download\/sources">ClamAV&trade; stable release<\/a> is: ([\d\.]+)/;
 
print "Lastest version = $ver\n";
#Check $ver with whatever version you have

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Author Comment

by:blattamax
ID: 22622280
thank u adam.. but dont work...

the output is


[root@issrepo01 ~]# ./test.pl
Lastest version =
[root@issrepo01 ~]#

what wrong?
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Author Comment

by:blattamax
ID: 22622397
this is the string to check
Latest <a href="/download/sources">ClamAV&trade; stable release</a> is: 0.94 <br />
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LVL 39

Accepted Solution

by:
Adam314 earned 250 total points
ID: 22625221
What is the output from this:
use LWP::Simple;
 
my $content = get('http://the.site.here/the/page/here');
die "Could not get content\n" unless $content;
 
if($content =~ /<p>Latest <a href="\/download\/sources">ClamAV&trade; stable release<\/a> is: ([\d\.]+)/) {
    print "Lastest version = $ver\n";
}
else {
    print "Could not determine latest version.  Content:\n$content\n";
}

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