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POWhy do I get the error message »Failed to parse line« with Text::CSV?
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2011-05-10T07:54:48.327
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I'm trying to parse a CSV file in Perl, but don't really understand examples I found on the Internet. Could someone explain me this example? <pre><code>#!/usr/bin/perl use strict; use warnings; use Text::CSV; my $file = 'dhcp.csv'; my $csv = Text::CSV->new(); open (CSV, "<", $file) or die $!; while (<CSV>) { next if ($. == 1); if ($csv->parse($_)) { my @columns = $csv->fields(); print "Name: $columns[0]\n\tContact: $columns[4]\n"; } else { my $err = $csv->error_input; print "Failed to parse line: $err"; } } close CSV; </code></pre> When I run it, I get <code>Failed to parse line</code>. What does the <code>$.</code> stand for? And <code>$_</code>? My goal is to find the line where there is the computer name I search for. After that, I can find the corresponding MAC address. I hope this is comprehensible, thanks. <hr> EDIT: My CSV file looks like: <pre><code>172.30.72.22,DEC-16.rec.local,001676b755d6,Bart SIMPSONS,Ordinateur de bureau,DEC/DECVA,002,SR2 0.12,,Accès complet,N/D,Aucun 172.30.72.23,DEC-20.rec.local,001688b7bfdc,Larry Wall,Ordinateur de bureau,DEC/DECVA,003,?,,Accès complet,N/D,Aucun </code></pre> Field #2 is the hostname, I want to resolve field #3 (MAC address) by field #2. <hr> EDIT n°2: In fact, don't need to parse the CSV file for my purpose. I found a bash solution, fast enough for my application. <pre><code>my $macAdd = `cat dhcp.csv | grep {computerName} | cut -d ',' -f 5` </code></pre> Done ! Thanks for your help, one day I'll have to parse a csv file, sure. 3rd edit : don't know who edited my post and the topic question, but that's not it at all !
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Why do I get the error message »Failed to parse line« with Text::CSV?
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