(and if you don't have Mojolicious installed, LWP::UserAgent does it as well:)

use LWP::UserAgent;
my $url = "http://de.arxiv.org/pdf/1106.3541";
print LWP::UserAgent->new->head($url)->headers->content_type()

[download]

In reply to Re^2: LWP::Simple to judge the url by Corion
in thread LWP::Simple to judge the url by sarvan

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