I have always found a solution that works by searching this site and others, but this problem has been driving me crazy for a few days. I'm coding in Windows (Windows 10) and trying to change a Windows created text file that ends in CRLF to just LF, so that I can upload the file and process it on a Unix-based site. Every thing that I have tried either gives me CRLF back, or in some cases I can get the file to end with just CR, but never just LF.


I know that this script is lengthy, but the oneliners haven't worked, so I was attempting to pull in the existing file, substitute CRLF with LF, push the result onto an array, then re-open the original filename and dump the array. Here's what doesn't work ( I have an environement variable set which we can say rbfile=myfile.txt ):


use strict;
use warnings;

my $rxbfile = $ENV{rbfile};

open(IN, "$rxbfile") or die $!;
binmode IN;

my @array = "";
my $newline = "";

while (<IN>) {
  $newline = $_;
  $newline =~ s/\r\n/\012/;
  push @array,$newline;
};

close (IN);

open(OUT, ">$rxbfile") or die $!;

foreach (@array) {
  print OUT $_;
};

close (OUT);

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In reply to Changing CRLF in Windows to LF for UNIX by Anonymous Monk

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