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    <pre><code>$browser-&gt;field("Choose an organism : ", "Mus musculus"); </code></pre> <p>For clarity, can be:</p> <pre><code>$browser-&gt;select("Choose an organism : ", "Mus musculus"); </code></pre> <p>And you should use the <code>submit</code> method.</p> <pre><code>$browser-&gt;submit(); </code></pre> <p>This:</p> <pre><code>use strict; use warnings; use WWW::Mechanize; # create object for browser my $browser = WWW::Mechanize-&gt;new(); my ($sequence, $results); $sequence = &lt;&lt;END; AAACACACTGGGGAATGGAGCAAGACAGTCTTTGAATATCAAACACGCAAGGCAATGAGACTACCCATCATAGATATCGCACCCTATGACATTGGGGGTCCTGATCAAGAATTTGGTGTGGACATTGGCCCTGTTTGCTTTTTATAAGCCAAACTCTCTGAAACCCCAGCAAAACAAAAACCACATCCATGTGTTCATCTTGTTTTAATCTTATCAACCAGTGCAAGTGACCAACTAAATTCCAGTTATTTATTTCCAAACTTTTGGAAAAAGCATAATTTGACAAAAAAAGAATACAATTTTTTGCTGTTTCAACCACCCAATACAGGTCAAATGCTTTTGTTTTATTTTTTTACCAATTCCAACTTCAAAATGTCTCAATGGTGCTATAATAAATAAACGTCAACACTTTTATGATAA END $browser-&gt;get("http://bioinfo.uni-plovdiv.bg/microinspector/"); $browser-&gt;form_number(1); $browser-&gt;field("target_sequence", $sequence); $browser-&gt;select("Choose an organism : ", "Mus musculus"); #my $response = $browser-&gt;click_button( number =&gt; 1); my $response = $browser-&gt;submit(); print $response-&gt;content(); </code></pre> <p>Returns:</p> <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US"&gt; &lt;head&gt; &lt;title&gt;A New MiRNA Program&lt;/title&gt; &lt;meta http-equiv="Content-Type" content="text/html; charset=windows-1251" /&gt; &lt;/head&gt; &lt;body&gt; &lt;IMG SRC='Bio::Graphics::Panel=HASH(0x1ed39c8)-&gt;png'&gt;&lt;H1 align=center&gt;RESULTS&lt;/H1&gt;&lt;TABLE align=center border CELLPADING=10 CELLSPASING=0&gt;&lt;THEAD bgcolor=#C0C0C0 NOWRAP align=center&gt;&lt;TR&gt; &lt;TD&gt;POSITION&lt;/TD&gt;&lt;TD&gt;SEQUENCE OF TARGET&lt;/TD&gt;&lt;TD&gt;NAME OF MIRNA&lt;/TD&gt;&lt;TD&gt;SEQUENCE OF MIRNA&lt;/TD&gt;&lt;TD&gt;FREE ENERGY&lt;/TD&gt;&lt;TD&gt;LINK (SEC.STRUCTURE .ps)&lt;/TD&gt; &lt;TBODY&gt;&lt;tr align=center nowrap&gt;&lt;td&gt;54&lt;/td&gt;&lt;td&gt;ATGAGACTACCCATCATAGATATCGCACCCTA&lt;/td&gt;&lt;td&gt;mmu-miR-342-5p&lt;/td&gt;&lt;td&gt;aggggugcuaucugugauugag&lt;/td&gt;&lt;td&gt;-27.8&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/54seqmmu-miR-342-5p.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;22&lt;/td&gt;&lt;td&gt;AGACAGTCTTTGAATATCAAACACGCAAGGCA&lt;/td&gt;&lt;td&gt;mmu-miR-669e&lt;/td&gt;&lt;td&gt;ugucuugugugugcauguucau&lt;/td&gt;&lt;td&gt;-27.1&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/22seqmmu-miR-669e.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;97&lt;/td&gt;&lt;td&gt;GTCCTGATCAAGAATTTGGTGTGGACATTGGC&lt;/td&gt;&lt;td&gt;mmu-miR-199a-5p&lt;/td&gt;&lt;td&gt;cccaguguucagacuaccuguuc&lt;/td&gt;&lt;td&gt;-25.2&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/97seqmmu-miR-199a-5p.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;93&lt;/td&gt;&lt;td&gt;GGGGGTCCTGATCAAGAATTTGGTGTGGACAT&lt;/td&gt;&lt;td&gt;mmu-miR-124-star&lt;/td&gt;&lt;td&gt;cguguucacagcggaccuugau&lt;/td&gt;&lt;td&gt;-25.2&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/93seqmmu-miR-124-star.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;202&lt;/td&gt;&lt;td&gt;TTTTAATCTTATCAACCAGTGCAAGTGACCAA&lt;/td&gt;&lt;td&gt;mmu-miR-150-star&lt;/td&gt;&lt;td&gt;cugguacaggccugggggauag&lt;/td&gt;&lt;td&gt;-24.2&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/202seqmmu-miR-150-star.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;128&lt;/td&gt;&lt;td&gt;CCCTGTTTGCTTTTTATAAGCCAAACTCTCTG&lt;/td&gt;&lt;td&gt;mmu-miR-1966&lt;/td&gt;&lt;td&gt;aagggagcuggcucaggagagaguc&lt;/td&gt;&lt;td&gt;-23.1&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/128seqmmu-miR-1966.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;99&lt;/td&gt;&lt;td&gt;CCTGATCAAGAATTTGGTGTGGACATTGGCCC&lt;/td&gt;&lt;td&gt;mmu-miR-1898&lt;/td&gt;&lt;td&gt;aggucaagguucacaggggauc&lt;/td&gt;&lt;td&gt;-22.9&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/99seqmmu-miR-1898.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;97&lt;/td&gt;&lt;td&gt;GTCCTGATCAAGAATTTGGTGTGGACATTGGC&lt;/td&gt;&lt;td&gt;mmu-miR-199b-star&lt;/td&gt;&lt;td&gt;cccaguguuuagacuaccuguuc&lt;/td&gt;&lt;td&gt;-22.8&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/97seqmmu-miR-199b-star.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;30&lt;/td&gt;&lt;td&gt;TTTGAATATCAAACACGCAAGGCAATGAGACT&lt;/td&gt;&lt;td&gt;mmu-miR-200c-star&lt;/td&gt;&lt;td&gt;cgucuuacccagcaguguuugg&lt;/td&gt;&lt;td&gt;-22.2&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/30seqmmu-miR-200c-star.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;6&lt;/td&gt;&lt;td&gt;ACTGGGGAATGGAGCAAGACAGTCTTTGAATA&lt;/td&gt;&lt;td&gt;mmu-miR-743b-5p&lt;/td&gt;&lt;td&gt;uguucagacugguguccauca&lt;/td&gt;&lt;td&gt;-21.4&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/6seqmmu-miR-743b-5p.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;68&lt;/td&gt;&lt;td&gt;CATAGATATCGCACCCTATGACATTGGGGGTC&lt;/td&gt;&lt;td&gt;mmu-miR-188-5p&lt;/td&gt;&lt;td&gt;caucccuugcaugguggaggg&lt;/td&gt;&lt;td&gt;-21.3&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/68seqmmu-miR-188-5p.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;3&lt;/td&gt;&lt;td&gt;CACACTGGGGAATGGAGCAAGACAGTCTTTGA&lt;/td&gt;&lt;td&gt;mmu-miR-1981&lt;/td&gt;&lt;td&gt;guaaaggcugggcuuagacguggc&lt;/td&gt;&lt;td&gt;-21.1&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/3seqmmu-miR-1981.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;56&lt;/td&gt;&lt;td&gt;GAGACTACCCATCATAGATATCGCACCCTATG&lt;/td&gt;&lt;td&gt;mmu-miR-1894-3p&lt;/td&gt;&lt;td&gt;gcaagggagagggugaagggag&lt;/td&gt;&lt;td&gt;-20.8&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/56seqmmu-miR-1894-3p.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;35&lt;/td&gt;&lt;td&gt;ATATCAAACACGCAAGGCAATGAGACTACCCA&lt;/td&gt;&lt;td&gt;mmu-miR-193-star&lt;/td&gt;&lt;td&gt;ugggucuuugcgggcaagauga&lt;/td&gt;&lt;td&gt;-20.6&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/35seqmmu-miR-193-star.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;156&lt;/td&gt;&lt;td&gt;TCTGAAACCCCAGCAAAACAAAAACCACATCC&lt;/td&gt;&lt;td&gt;mmu-miR-1188&lt;/td&gt;&lt;td&gt;uggugugagguugggccagga&lt;/td&gt;&lt;td&gt;-20.52&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/156seqmmu-miR-1188.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr align=center nowrap&gt;&lt;td&gt;356&lt;/td&gt;&lt;td&gt;CAATTCCAACTTCAAAATGTCTCAATGGTGCT&lt;/td&gt;&lt;td&gt;mmu-miR-680&lt;/td&gt;&lt;td&gt;gggcaucugcugacauggggg&lt;/td&gt;&lt;td&gt;-20.3&lt;/td&gt;&lt;td&gt;&lt;A HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/356seqmmu-miR-680.ps'&gt;image&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;/TBODY&gt;&lt;/TABLE&gt;&lt;/html&gt; &lt;BR&gt; &lt;table align=center&gt; &lt;tr&gt;&lt;td align=center&gt;&lt;A align=center HREF='http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/seq20110311051243.csv'&gt;Results in .CSV format (Right click and 'Save as')&lt;/A&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;td&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt; &lt;tr&gt;&lt;td&gt;&lt;IMG SRC='/microinspector/cgi/postscript/20110311051243/image.png'&gt;&lt;/td&gt;&lt;/tr&gt;&lt;table&gt;&lt;/table&gt;&lt;BR&gt;&lt;/FORM&gt; &lt;/body&gt; </code></pre> <p>EDIT:</p> <p>A revised script to save the csv files to disk:</p> <pre><code>use strict; use warnings; use WWW::Mechanize; # create object for browser my $browser = WWW::Mechanize-&gt;new(); my $sequence = &lt;&lt;END; AAACACACTGGGGAATGGAGCAAGACAGTCTTTGAATATCAAACACGCAAGGCAATGAGACTACCCATCATAGATATCGCACCCTATGACATTGGGGGTCCTGATCAAGAATTTGGTGTGGACATTGGCCCTGTTTGCTTTTTATAAGCCAAACTCTCTGAAACCCCAGCAAAACAAAAACCACATCCATGTGTTCATCTTGTTTTAATCTTATCAACCAGTGCAAGTGACCAACTAAATTCCAGTTATTTATTTCCAAACTTTTGGAAAAAGCATAATTTGACAAAAAAAGAATACAATTTTTTGCTGTTTCAACCACCCAATACAGGTCAAATGCTTTTGTTTTATTTTTTTACCAATTCCAACTTCAAAATGTCTCAATGGTGCTATAATAAATAAACGTCAACACTTTTATGATAA END $browser-&gt;get("http://bioinfo.uni-plovdiv.bg/microinspector/"); $browser-&gt;form_number(1); $browser-&gt;field("target_sequence", $sequence); $browser-&gt;select("Choose an organism : ", "Mus musculus"); $browser-&gt;submit(); my @links = $browser-&gt;links(); foreach my $link ( @links ){ if( $link-&gt;url() =~ /csv$/i ){ my $result = $browser-&gt;get( $link-&gt;url() ); my $filename = ( $link-&gt;url() =~ /\/([^\/]+)$/ )[0]; print "Saving $filename\n"; open( OUT, "&gt;$filename" ); print OUT $result-&gt;content(); close( OUT ); } } </code></pre>
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    1. CO->field should work according to the documentation at: http://search.cpan.org/~petdance/WWW-Mechanize-1.66/lib/WWW/Mechanize.pm#$mech->select($name,_$value) $mech->field: "Given the name of a field, set its value to the value specified." Seems the asker wrote the perfect program according to the (incorrect) instructions available.
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    2. COYou are correct. In this case, either is acceptable.
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    3. CO@moshen Thanks so much, I actually realized that the first line the file I was reading from was in the wrong format, I needed the second line in the file. Thanks again for the pointers. if I want to download the link in the outpuage webpage http://bioinfo.uni-plovdiv.bg/microinspector/cgi/postscript/20110311051243/seq20110311051243.csv I was thinking about using the mech->find_link option. How do I direct the link to save?
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