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mojo get perlmonks.org >filename_source.html
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perl -Mojo -E 'say g("perlmonks.org")->dom->html'
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use strict;
use warnings;
use LWP::Simple qw(get);
my $raw_page = get( 'http://perlmonks.org' );
open my $html_ofh, '>', 'filename.txt' or die $!;
print {$html_ofh} $raw_page;
close $html_ofh or die $!;