my $match = "\\well";
print $match;

##</code><code>##

    \well

##</code><code>##

my $match = "\\well";
$text =~ s/$match//;

##</code><code>##

$text =~ s/\well//;

##</code><code>##

my $match = "\\\\well";
$text =~ s/$match//;

##</code><code>##

my $match = qr/\\well/;
$text =~ s/$match//;