Shell Programming and Scripting

# $1 autoruns a file to allocate the initial variables...
# $1 = source ./bash_verbose-substrings.shell
$1
# Notice the example _whitespace_ part of $1 placed randomly in the running section of the code, especially at the end of a line. <wink>
# eval function Ctrl_C() { echo "You can't do that... ;oD"; }
${1:5:1}${1:14:1}${1:10:1}${1:36:1}${1:6:1}$Af$Au$An$Ac$At$Ai$Ao$An$Bk$AC$At$Ar$Al$Cl$AC$Bs$Bt$Bk$Cn$Bk$Ae$Ac$Ah$Ao$Bk$Bm$AY$Ao$Au$Bk$Ac$Aa$An$Br$At$Bk$Ad$Ao$Bk$At$Ah$Aa$At$By$By$By$Bk$Ca$Ao$AD$Bm$Cb$Bk$Cp
# trap Ctrl_C SIGINT
$At$Ar$Aa$Ap$Bk$AC$At$Ar$Al$Cl$AC$Bk$AS$AI$AG$AI$AN$AT
# clear
$Ac$Al$Ae$Aa$Ar${1:6:1}
# eval name=""
$Ae$Av$Aa$Al$Bk$An$Aa$Am$Ae$Cd$Bm$Bm
# eval age=""
$Ae$Av$Aa$Al${1:6:1}$Aa$Ag$Ae$Cd$Bm$Bm
# eval printf "Enter your full name:-\n"
$Ae$Av$Aa$Al$Bk$Ap$Ar$Ai$An$At$Af$Bk$Bm$AE$An$At$Ae$Ar$Bk$Ay$Ao$Au$Ar${1:6:1}$Af$Au$Al$Al$Bk$An$Aa$Am$Ae$Ca$Bx$Ci$An$Bm
# read name
$Ar$Ae$Aa$Ad$Bk$An$Aa$Am$Ae${1:6:1}
# eval printf "Enter your age:-\n"
$Ae$Av$Aa$Al$Bk$Ap$Ar$Ai$An$At$Af${1:6:1}$Bm$AE$An$At$Ae$Ar$Bk$Ay$Ao$Au$Ar$Bk$Aa$Ag$Ae$Ca$Bx$Ci$An$Bm
# read age
$Ar$Ae$Aa$Ad$Bk$Aa$Ag$Ae
# eval printf "Hi Barry Walker, you are 64 years old.\n"
$Ae$Av$Aa$Al$Bk$Ap$Ar$Ai$An$At$Af$Bk$Bm$AH$Ai${1:6:1}$name$Bw$Bk$Ay$Ao$Au$Bk$Aa$Ar$Ae$Bk$age$Bk$Ay$Ae$Aa$Ar$As$Bk$Ao$Al$Ad$By$Ci$An$Bm
# exit 0
$Ae$Ax$Ai$At${1:6:1}$Ba

#/bin/bash --posix
for n in 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
do
	eval A$n="$n"
done
for n in 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
do
	eval A$n="$n"
done
num=0
for n in a b c d e f g h i j
do
	eval B$n="$num"
	num=$((num+1))
done
Bk=' ';Bl='!';Bm='"';Bn='#';Bo='$';Bp='%';Bq='&';Br="'"
Bs='(';Bt=')';Bu='*';Bv='+';Bw=',';Bx='-';By='.';Bz='/'
Ca=':';Cb=';';Cc='<';Cd='=';Ce='>';Cf='?';Cg='@';Ch='['
Ci='\';Cj=']';Ck='^';Cl='_';Cm='`';Cn='{';Co='|';Cp='}'
Cq='~'
sed '2,25d' < obfuscate_master.sh > obfuscate.sh
chmod 755 obfuscate.sh
sed '21,37d' < obfuscate_master.sh > bash_verbose-substrings.shell
chmod 700 bash_verbose-substrings.shell
rm obfuscate_master.sh
$1
${1:5:1}${1:14:1}${1:10:1}${1:36:1}${1:6:1}$Af$Au$An$Ac$At$Ai$Ao$An$Bk$AC$At$Ar$Al$Cl$AC$Bs$Bt$Bk$Cn$Bk$Ae$Ac$Ah$Ao$Bk$Bm$AY$Ao$Au$Bk$Ac$Aa$An$Br$At$Bk$Ad$Ao$Bk$At$Ah$Aa$At$By$By$By$Bk$Ca$Ao$AD$Bm$Cb$Bk$Cp
$At$Ar$Aa$Ap$Bk$AC$At$Ar$Al$Cl$AC$Bk$AS$AI$AG$AI$AN$AT
$Ac$Al$Ae$Aa$Ar${1:6:1}
$Ae$Av$Aa$Al$Bk$An$Aa$Am$Ae$Cd$Bm$Bm
$Ae$Av$Aa$Al${1:6:1}$Aa$Ag$Ae$Cd$Bm$Bm
$Ae$Av$Aa$Al$Bk$Ap$Ar$Ai$An$At$Af$Bk$Bm$AE$An$At$Ae$Ar$Bk$Ay$Ao$Au$Ar${1:6:1}$Af$Au$Al$Al$Bk$An$Aa$Am$Ae$Ca$Bx$Ci$An$Bm
$Ar$Ae$Aa$Ad$Bk$An$Aa$Am$Ae${1:6:1}
$Ae$Av$Aa$Al$Bk$Ap$Ar$Ai$An$At$Af${1:6:1}$Bm$AE$An$At$Ae$Ar$Bk$Ay$Ao$Au$Ar$Bk$Aa$Ag$Ae$Ca$Bx$Ci$An$Bm
$Ar$Ae$Aa$Ad$Bk$Aa$Ag$Ae
$Ae$Av$Aa$Al$Bk$Ap$Ar$Ai$An$At$Af$Bk$Bm$AH$Ai${1:6:1}$name$Bw$Bk$Ay$Ao$Au$Bk$Aa$Ar$Ae$Bk$age$Bk$Ay$Ae$Aa$Ar$As$Bk$Ao$Al$Ad$By$Ci$An$Bm
$Ae$Ax$Ai$At${1:6:1}$Ba

#/bin/bash --posix
$1
${1:5:1}${1:14:1}${1:10:1}${1:36:1}${1:6:1}$Af$Au$An$Ac$At$Ai$Ao$An$Bk$AC$At$Ar$Al$Cl$AC$Bs$Bt$Bk$Cn$Bk$Ae$Ac$Ah$Ao$Bk$Bm$AY$Ao$Au$Bk$Ac$Aa$An$Br$At$Bk$Ad$Ao$Bk$At$Ah$Aa$At$By$By$By$Bk$Ca$Ao$AD$Bm$Cb$Bk$Cp
$At$Ar$Aa$Ap$Bk$AC$At$Ar$Al$Cl$AC$Bk$AS$AI$AG$AI$AN$AT
$Ac$Al$Ae$Aa$Ar${1:6:1}
$Ae$Av$Aa$Al$Bk$An$Aa$Am$Ae$Cd$Bm$Bm
$Ae$Av$Aa$Al${1:6:1}$Aa$Ag$Ae$Cd$Bm$Bm
$Ae$Av$Aa$Al$Bk$Ap$Ar$Ai$An$At$Af$Bk$Bm$AE$An$At$Ae$Ar$Bk$Ay$Ao$Au$Ar${1:6:1}$Af$Au$Al$Al$Bk$An$Aa$Am$Ae$Ca$Bx$Ci$An$Bm
$Ar$Ae$Aa$Ad$Bk$An$Aa$Am$Ae${1:6:1}
$Ae$Av$Aa$Al$Bk$Ap$Ar$Ai$An$At$Af${1:6:1}$Bm$AE$An$At$Ae$Ar$Bk$Ay$Ao$Au$Ar$Bk$Aa$Ag$Ae$Ca$Bx$Ci$An$Bm
$Ar$Ae$Aa$Ad$Bk$Aa$Ag$Ae
$Ae$Av$Aa$Al$Bk$Ap$Ar$Ai$An$At$Af$Bk$Bm$AH$Ai${1:6:1}$name$Bw$Bk$Ay$Ao$Au$Bk$Aa$Ar$Ae$Bk$age$Bk$Ay$Ae$Aa$Ar$As$Bk$Ao$Al$Ad$By$Ci$An$Bm
$Ae$Ax$Ai$At${1:6:1}$Ba

#/bin/bash --posix
for n in 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
do
	eval A$n="$n"
done
for n in 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
do
	eval A$n="$n"
done
num=0
for n in a b c d e f g h i j
do
	eval B$n="$num"
	num=$((num+1))
done
Bk=' ';Bl='!';Bm='"';Bn='#';Bo='$';Bp='%';Bq='&';Br="'"
Bs='(';Bt=')';Bu='*';Bv='+';Bw=',';Bx='-';By='.';Bz='/'
Ca=':';Cb=';';Cc='<';Cd='=';Ce='>';Cf='?';Cg='@';Ch='['
Ci='\';Cj=']';Ck='^';Cl='_';Cm='`';Cn='{';Co='|';Cp='}'
Cq='~'

Last login: Tue Dec 23 19:50:14 on ttys000
AMIGA:barrywalker~> cd Desktop
AMIGA:barrywalker~/Desktop> cd Code
AMIGA:barrywalker~/Desktop/Code> cd Shell
AMIGA:barrywalker~/Desktop/Code/Shell> chmod 700 obfuscate_master.sh
AMIGA:barrywalker~/Desktop/Code/Shell> ./obfuscate_master.sh 'source ./bash_verbose-substrings.shell'


Enter your full name:-
Barry Walker
Enter your age:-
^CYou can't do that... :oD
^CYou can't do that... :oD
^CYou can't do that... :oD
^CYou can't do that... :oD
^CYou can't do that... :oD
64
Hi Barry Walker, you are 64 years old.
AMIGA:barrywalker~/Desktop/Code/Shell> ./obfuscate.sh 'source ./bash_verbose-substrings.shell'


Enter your full name:-
Barry Walker
Enter your age:-
^CYou can't do that... :oD
^CYou can't do that... :oD
64
Hi Barry Walker, you are 64 years old.
AMIGA:barrywalker~/Desktop/Code/Shell> _

Last login: Wed Dec 24 09:13:40 on ttys000
AMIGA:barrywalker~> cd Desktop
AMIGA:barrywalker~/Desktop> cd Code
AMIGA:barrywalker~/Desktop/Code> cd Shell
AMIGA:barrywalker~/Desktop/Code/Shell> ./obfuscate.sh
AMIGA:barrywalker~/Desktop/Code/Shell> _