For the most basic level, see perldoc perlport.

Database requirements are smoothed over a lot by use DBI; which allows the connection string to absorb many platform differences.

Pure Perl modules like LWP will work right out of the box, for the most part.

After Compline,
Zaxo

print "Hello\n";
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print "Hello";
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Define "extra"? DOS/Win32 newlines are different, but when you write something like this:

print "line one\n";
print "line two\n";
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You should not get double-spaced output. There shouldn't be any "extra" newlines inserted here.

You may, however, be seeing a trailing newline at the termination of your script. This is added by the Win32 command prompt. Even typing 'rem' will give you an empty line before showing the next prompt.

There aren't many pitfalls. Any modules that you might encounter that you have doubts about can be checked against testing information.

The "\n" character cleanly prints CRLF. So you don't need to change your previous code. Perl is smart like that.

Windows 9x is less reliable than NT flavors, but that's just my observation.

Quick and Dirty newline fixer-uper (there's more than one better way to do this:)

#!/usr/bin/perl

use strict 'vars';
use vars qw( @stuff $i @ARGV $fh );

$/ = undef;
if (-e "$ARGV[0]"){
open ($fh, "+>>$ARGV[0]");
seek $fh,0,0;
@stuff = <$fh>;
foreach (@stuff){
$_ =~ s/\r/\n/mig;
}
seek $fh,0,0;
truncate $fh,0;
print $fh @stuff;

close $fh;

print "Done.\n";
}
else{
print "Select a file that's actually there.\n";
}
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Hope this helps.

John J Reiser
newrisedesigns.com