Shell Programming and Scripting

		C=141
		list=""
		while [[ $C -lt 173 ]];do
			printf \\$C
			list+=" \\$C"
			C=$((C+1))
		done
		echo
		echo $list

abcdefg
       8
9pqrstuvw89xyzmno
\141 \142 \143 \144 \145 \146 \147 \148 \149 \150 \151 \152 \153 \154 \155 \156 \157 \158 \159 \160 \161 \162 \163 \164 \165 \166 \167 \168 \169 \170 \171 \172

echo {a..z}
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

	list=( $(echo {a..z} ))

	num2char() { # NUM
	# Returns a letter string: a-z
	# Or: aa-az ba-bz, etc
		num=$1
		out=""
		if [[ $num -lt ${#list[@]} ]]
		then	out="${list[$num]}"
		else	high=$[ $num / ${#list[@]} ]
			out="${list[$high-1]}${list[$num - ($high * ${#list[@]})]}"
		fi
		echo "$out"
	}

time ./tui-list -a {a..z} \
	{a..z} {a..z} {a..z} \
	{a..z} {a..z} {a..z} \
	{a..z} {a..z} {a..z} \
	{a..z} {a..z} {a..z} \
	{a..z} {a..z} {a..z}
..
...
# | ox) x                                                                                                          | #
# | oy) y                                                                                                          | #
# | oz) z                                                                                                          | #
DEBUG 416 lines shown

real	0m2.671s
user	0m0.788s
sys	0m0.609s

...
oz) z
DEBUG 416 lines shown

real	0m0.218s
user	0m0.030s
sys	0m0.041s

    # Or: aa-az ba-bz, etc

echo {a..b}{a..z}
aa ab ac ad ae af ag ah . . .  bw bx by bz