#!/bin/bash# homework.sh: All-purpose homework assignment solution.#  Author: M. Leo Cooper#  If you substitute your own name as author, then it is plagiarism,#+ possibly a lesser sin than cheating on your homework!#  License: Public Domain#  This script may be turned in to your instructor#+ in fulfillment of ALL Bash scripting homework assignments.#  It's sparsely commented, but you, the student, can easily remedy that.#  The script author repudiates all responsibility!DLA=1P1=2P2=4P3=7PP1=0PP2=8MAXL=9E_LZY=99declare -a LL[0]="3 4 0 17 29 8 13 18 19 17 20 2 19 14 17 28"L[1]="8 29 12 14 18 19 29 4 12 15 7 0 19 8 2 0 11 11 24 29 17 4 6 17 4 19"L[2]="29 19 7 0 19 29 8 29 7 0 21 4 29 13 4 6 11 4 2 19 4 3"L[3]="19 14 29 2 14 12 15 11 4 19 4 29 19 7 8 18 29"L[4]="18 2 7 14 14 11 22 14 17 10 29 0 18 18 8 6 13 12 4 13 19 26"L[5]="15 11 4 0 18 4 29 0 2 2 4 15 19 29 12 24 29 7 20 12 1 11 4 29"L[6]="4 23 2 20 18 4 29 14 5 29 4 6 17 4 6 8 14 20 18 29"L[7]="11 0 25 8 13 4 18 18 27"L[8]="0 13 3 29 6 17 0 3 4 29 12 4 29 0 2 2 14 17 3 8 13 6 11 24 26"L[9]="19 7 0 13 10 29 24 14 20 26"declare -a \alph=( A B C D E F G H I J K L M N O P Q R S T U V W X Y Z . , : ' ' )pt_lt (){  echo -n "${alph[$1]}"  echo -n -e "\a"  sleep $DLA}b_r (){ echo -e '\E[31;48m\033[1m'}cr (){ echo -e "\a" sleep $DLA}restore (){  echo -e '\033[0m'            # Bold off.  tput sgr0                    # Normal.}p_l (){  for ltr in $1  do    pt_lt "$ltr"  done}# ----------------------b_rfor i in $(seq 0 $MAXL)do p_l "${L[i]}" if [[ "$i" -eq "$P1" || "$i" -eq "$P2" || "$i" -eq "$P3" ]] then   cr   elif [[ "$i" -eq "$PP1" || "$i" -eq "$PP2" ]]   then     cr; crfidonerestore# ----------------------echoexit $E_LZY#  An example of an obfuscated script that is difficult to understand,#+ and frustrating to maintain.#  In your career as a sysadmin, you'll run into these all too often.