Hi all, I checked the FAQ for help, and the code section, but I'm still at a loss. I'm trying to write a little dos2unix module that runs on Windows 2000. I found and borrowed the version here at http://www.perlmonks.org/index.pl?node_id=215707. I only need to convert CRLF to LF, DOS to UNIX. However, no matter how I try the conversion, it seems that I can't get rid of that pesky CR. Here's what I have: 
sub dos2unix {

  # Takes array containing file-paths as argument
  my (@files2Convert) = @_;

  foreach my $file (@files2Convert) {
     if (-e $file) {
        print "Converting $file...\n";
        # load file contents into memory for conversion
        open(FILE, "$file") or die "Can't open $file: $!";
        my @lines = <FILE>;
        close(FILE) or die "Can't close $file: $!";

        # here's where the actual conversion takes place
        foreach my $i ( 0..$#lines ) {
            $lines[$i] =~ s/\015\012/\012/g;
        }
            
        # make backup copy of file in case this module dies halfway th
+rough
        # the write to the new file. (We only have this file info in m
+emory at that point.)
    rename("$file","${file}.bak") or die "Couldn't make backup copy of
+ $file: $!";

    # write new data
    open(FILE,">$file") or die "Can't open $file: $!";
    print FILE @lines;
    close(FILE) or die "Can't close $file: $!";

    # remove backup if all is successful
    unlink "${file}.bak" or warn "Couldn't remove backup of $file: $!"
+;

     }
  }
}

[download]
This code doesn't change the file at all. So, I tried various replacements for the regex line: 
$lines[$i] =~ s/\015\012/\012/g;
$lines[$i] =~ s/\n/\012/g;
$lines[$i] =~ s/\x0D\x0A/\012/g;
$lines[$i] =~ s/\015\012/\x0A/g;
$lines[$i] =~ s/\n/\x0A/g;
$lines[$i] =~ s/\x0D\x0A/\x0A/g;

[download]
All with the same result- no change, still CRLF. I even read up in the Camel book about the Socket module, and tried the following: 
use Socket qw(:DEFAULT :crlf);
local ($/) = LF;
$lines[$i] =~ s/$CRLF/$LF/g;

[download]
But the file remained CRLF.I did some experimentation, and it looks like \012 is set to "CRLF" on my system somehow because the following removes the entire line delimiter: 
$lines[$i] =~ s/\012//g;

[download]
I copied the code over to UNIX with a few CRLF files, and it worked fine. I'm sure I'm missing something simple, has anyone else encountered this before?

In reply to Perl Dos2Unix on Windoze? by lorenak

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.