Welcome luckycat,

You have to be careful with the "$_", since in your processing you may modify it. Other monks have shone you a better way: 
while (my $line = <$IN>)
{
    # ...
}

[download]
However if the line terminator is set to "\n" you can't use your test since you have only "\r" or something else at the end of line. Update: I don't know what I was thinking :-(

I think if you look at 'chop' it might help you with modifying the output. 

while (my $line = <$IN>)
{   my $eof = chop( $line );    # This removes last char and saves
    if ( $eof ne "\r" ) { $line .= $eof; }
    if ( $NoWork == 0 ) { print OUTFILE "$line\n"; }

 DoYourWork:

    # ...
}

[download]
Your could use 'substr' to test the end of line, but I don't know which would be faster in your environment. It may be a good time to try 'Benchmark'.

Regards...Ed

"Well done is better than well said." - Benjamin Franklin

In reply to Re: Copying an ascii text file, replicating end of line terminator (windows or unix) by flexvault
in thread Copying an ascii text file, replicating end of line terminator (windows or unix) by luckycat

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