Beefy Boxes and Bandwidth Generously Provided by pair Networks
Welcome to the Monastery
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

Hi: Tux

I finally, with your help got the script to work. I discovered that the common column had to have the same column header. Your line below with the || really helped because it turned out there were 203 usernames from final.csv that were not found in the HCDir.csv; this trapped the error instead of displaying a blank CSV file. Lastly, I needed to turn off "use strict" because it produces the following error.

Global symbol "%File1Map" requires explicit package name at completed. +pl line 15 . Global symbol "%File1Map" requires explicit package name at completed. +pl line 28 . Global symbol "%File1Map" requires explicit package name at completed. +pl line 29 . Execution of completed.pl aborted due to compilation errors.

Other than that the script worked great. Below is a copy of my modified script.

#!F:\strawberry-perl-5.16.1.1\perl\bin\perl -w #use strict; use warnings; use Text::CSV_XS my %File1Map; my %File2Map; my $csv = Text::CSV_XS->new ({ binary => 1, auto_diag => 1, allow_whit +espace => 1 }); open my $fh1, "<", "final.csv" or die "final.csv: $!"; $csv->column_names ($csv->getline ($fh1)); # Read the header line while (my $row = $csv->getline_hr ($fh1)){ $File1Map{$row->{username}} = $row->{date_modified}; } open my $fh2, "<", "HCDir.csv" or die "HCDir.csv: $!"; $csv->column_names ($csv->getline ($fh2)); # Read the header line while (my $row = $csv->getline_hr ($fh2)){ $File2Map{$row->{username}} = $row->{branch}; } $csv->eol ("\n"); # Now use it for output open my $fh3, ">", "completed.csv" or die "completed.csv: $!"; $csv->print ($fh3, [qw( username date_modified branch)]); foreach my $username (sort keys %File1Map) { $csv->print ($fh3, [ $username, $File1Map{$username}, $File2Map{$u +sername} || +"Not Found In HCDir!" ]); } close $fh1; close $fh2; close $fh3;

I want to thank you again, I am really new to PERL and I learn primarily through examples. Without your help I would still be lost. I like PERL and would like to continue using PERL. I also purchased the Fourth Edition of "Programming Perl" by Tom Christiansen, Brian d Foy, and Larry Wall; dated 2012. I gather this is the Bible but it did not help with my specific situation.

Yours truly,

TheCanadian 20120919-1207 :-}


In reply to Re^6: Merging Two CSV files Based on Two Columns by TheCanadian
in thread Merging Two CSV files Based on Two Columns by TheCanadian

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others romping around the Monastery: (8)
    As of 2014-08-29 17:18 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The best computer themed movie is:











      Results (283 votes), past polls