my $holdTerminator = $/;
undef $/;
my $projectA = <MYINPUTFILE>;
$/ = $holdTerminator;
my @lines = split /$holdTerminator/, $projectA;
$projectA = "init";
$projectA = join $holdTerminator, @lines;
print $projectA;
print "\n";

##</code><code>##

use strict;
use warnings;

print qq{content-type: text/html \n\n};

my $inputFile = q{projecta.txt};
open my $inputFH, q{<}, $inputFile
   or die qq{open: $inputFile: $!\n};

my $projectA;
{
    local $/;
    $projectA = <$inputFH>;
}

close $inputFH
   or die qq{close: $inputFile: $!\n};

# If you want a line containing "init" first
# uncomment the line below
#
# $projectA = qq{init\n} . $projectA;

print $projectA;

...