Shell Programming and Scripting

1
12
123
1234

#!/bin/bash
echo
echo "***********************"
echo "***********************"
echo
declare stop=0
while [ $stop == 0 ]; do
cat <<ENDOFMENU
1       : the first option
2       : the second option
3       : the third option
4       : the fourth option
5       : the fifth option
ENDOFMENU

echo
echo -n " Your choice? : "
read choice

...

case $choice in
  2)    echo -n " Now please enter a number 1-9 : "
        read number
        declare i=1
        while (( $i  <= $number )); do
                declare j=1
                while (( $j <= $number )); do
                        echo $j
                        printf $j + 1
                        (( j++ ))
                done
        (( i++))
        done

        declare stop=1
;;

1
12
23
34
41
12
23
34
41
12
23
34
41
12
23
34
4

#!/usr/bin/ksh

echo -n " Now please enter a number 1-9 : "
read number
i=$number
while (( $i > 0 )); do

  j=$(( $number - $i + 1 ))
  k=1

  while (( $k <= $j )); do
    print -n "$k"
    k=$(( $k + 1 ))
  done

  print ""

  i=$(( $i - 1 ))

done

# case $choice in
# 2)   
        echo -n " Now please enter a number 1-9 : "
        read number
        for ((i=1; i<=number; i++ ))
        do    OUT=""
            for ((j=1; j<=$i; j++))
            do    OUT+=$j
            done
            echo $OUT
        done
# ;;