assignment #2-q3

question3.sh

#!/bin/sh
# Author: Chris Niesel
# Class: Computer Science 2211A

# get number from user
echo "Enter a number: "
read i
                    
x=0 # loop iterator value

# check if iterator value is less than inputted value-1
while [ "$x" -lt `expr $i - 1` ]               
do      
        s=`seq 0 $x` # generate sequence of numbers
        echo $s      # echo sequence of numbers
        x=`expr $x + 1` # increase loop iteration counter
        
done

# check if iteration counter is bigger or equal to 0
while [ "$x" -ge 0 ]
do
        s=`seq 0 $x` # generate sequence of numbers from 0 to iterator counter
        echo $s      # echo sequence of numbers
        x=`expr $x - 1` # decrease loop counter
done