HI i am new to perl.. please help me iam getting error at @INFFiles = `dir /b $filespec`; foreach loop is not executing and iam not understanding this part $VersionNumber =~ s/^\d+\.\d+\.\d+\.\d+//g; and $VersionNumber =~s/\x0d//g; please Guide me what i need to learn to understand this code. 

sub FileVersion($$$)
{
    my ($path, $fileName, VersionID) = @_;

    if ("" eq $fileName)
    {
        $filespec = "$path\\*.inf";
    }
    else
    {
        $filespec = "$path\\$fileName";
    }

    @INFFiles = `dir /b $filespec`;
          
    foreach $infFile (@INFFiles)
    {
        chomp $infFile;
        $infFile = "$path\\$infFile";
        $encoding = GetFileEncoding($infFile);    
        open(INF, "<:encoding($encoding)", "$infFile") || writelog(log
+die,"Could not open $path\\$infFile"); 
        @Contents = <INF>;
        @match = grep(/DriverVer=/, @Contents);
        close INF;
    }
    my ($prefix, $VersionNumber) = split(',', $match[0]);
    $VersionNumber =~ s/[^\d+\.\d+\.\d+\.\d+]//g; 
    $VersionNumber =~ s/\x0d//g; 
    chomp $VersionNumber;
    writelog(debug,"pr_UpdateFileVersion $MyVersionID, $VersionNumber"
+);
    ExecStoredProcedure("pr_UpdateFileVersion", "$MyVersionID,'$Versio
+nNumber'");
    return $VersionNumber;
}

[download]

In reply to Please help me by mtrasp

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!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            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.