gistfile1.txt

#!/bin/sh

fire_echo() {
perl -CS -Mutf8 -e '
use strict;
use warnings;

my @stops = (
    [255,  64, 255],   # magenta
    [160, 128, 255],   # purple
    [ 96, 224, 255],   # cyan
    [ 64, 255, 192],   # teal
    [ 64, 255, 128],   # green
);

my $text = join("", <STDIN>);
my @chars = split(//, $text);
my @printable = grep { $_ ne "\n" } @chars;
my $total = @printable || 1;
my $i = 0;

sub lerp {
    my ($a, $b, $t) = @_;
    return int($a + ($b - $a) * $t);
}

for my $ch (@chars) {
    if ($ch eq "\n") {
        print "\033[0m\n";
        next;
    }

    my $pos = $i++ / ($total - 1);
    my $seg = int($pos * (@stops - 1));
    $seg = @stops - 2 if $seg >= @stops - 1;

    my $t = ($pos * (@stops - 1)) - $seg;

    my ($r1,$g1,$b1) = @{ $stops[$seg] };
    my ($r2,$g2,$b2) = @{ $stops[$seg + 1] };

    my $r = lerp($r1,$r2,$t);
    my $g = lerp($g1,$g2,$t);
    my $b = lerp($b1,$b2,$t);

    print "\033[38;2;${r};${g};${b}m$ch";
}
print "\033[0m";
'
}

fire_echo << 'EOF'
      __  __  _____  ___   __    _         __                                          
   /\ \ \/__\/__   \/ __\ /__\  /_\/\   /\/__\                                         
  /  \/ /_\    / /\/ /   / \// //_\\ \ / /_\                                           
 / /\  //__   / / / /___/ _  \/  _  \ V //__                                           
 \_\ \/\__/   \/  \____/\/ \_/\_/ \_/\_/\__/                                           
                                                                                      
    ___   ___                         __ _____  ___   _   __________  ___    __  __    
   / __\ /___\/\/\    /\/\  /\ /\  /\ \ \\_   \/ __\ /_\ /__   \_   \/___\/\ \ \/ _\   
  / /   //  //    \  /    \/ / \ \/  \/ / / /\/ /   //_\\  / /\// /\//  //  \/ /\ \    
 / /___/ \_// /\/\ \/ /\/\ \ \_/ / /\  /\/ /_/ /___/  _  \/ //\/ /_/ \_// /\  / _\ \   
 \____/\___/\/    \/\/    \/\___/\_\ \/\____/\____/\_/ \_/\/ \____/\___/\_\ \/  \__/   
EOF

echo "
 FreeBSD         : $(uname -r) $(uname -m)
 System          : $(hostname)
 Load average    :$(uptime)"

echo "
 THIS SYSTEM IS THE PROPERTY OF NETCRAVE COMMUNICATIONS SYSTEMS.
 IT IS FOR AUTHORIZED USE ONLY.

 UNAUTHORIZED ACCESS TO OR USE OF THIS SYSTEM IS STRICTLY PROHIBITED.
 USERS (AUTHORIZED OR UNAUTHORIZED) HAVE NO EXPLICIT OR IMPLICIT EXPECTATION OF 
 PRIVACY.

 ANY OR ALL USES OF THIS SYSTEM AND ALL FILES ON THIS SYSTEM MAY BE INTERCEPTED,
 MONITORED, RECORDED, COPIED, AUDITED, INSPECTED, AND DISCLOSED TO AUTHORIZED
 PERSONNEL AND LAW ENFORCEMENT, AS NEEDED.

 BY USING THIS SYSTEM, THE USER CONSENTS TO SUCH TERMS.
 UNAUTHORIZED OR IMPROPER USE MAY RESULT IN CIVIL AND CRIMINAL PENALTIES.

 VIOLATORS WILL BE PROSECUTED TO THE MAXIMUM EXTENT POSSIBLE.

 DISCONNECT NOW IF YOU ARE NOT AN AUTHORIZED USER.
"