Write a script to sort a given number in ascending or descending order





 #!/bin/bash

<<doc

Name:Omprakash A Timashetti

Date:23/08/2022

Description :Write a script to sort a given number in ascending or descending order 


Sample Input1:./sorting.sh -a 5 4 6 2 3 8 9 7 1

Sample Output :Ascending order of array is 1 2 3 4 5 6 7 8 9


Sample Input2 :./sorting.sh -d 5 4 6 2 3 8 9 7 1

Sample Output2 :Descending order of array is 9 8 6 5 4 3 2 1


Sample Input3:./sorting.sh 5 4 6 2 3 8 9 7 1

Sample Output3 :Error : Please pass the choice.

                Usage : ./sorting -a/-d 4 23 5 6 3

Sample Input4: ./sorting.sh

Sample Output:Error : Please pass the argument through command line.

              Usage : ./sorting -a/-d 4 23 5 6 3


Sample Input5:./sorting.sh -d 5 4 6 2 -3 8 -9 7 1

Sample Output : Descending order of array is 8 7 6 5 4 2 1 -3 -9

doc


if [ $# -ne 0 ]                                        #check for command line argument passed or not

then

Array=($@)                                             #Store the command line argument  in an array

option=$1                                              #Get option for ascending and descending

case $option in                                        #case statement for Ascending and descending 

   -a)

     for i in `seq $(($#-1))`                          #Ascending given Array  

     do

        for j in `seq 1 $(($#-$i-1))`                  

        do

           if [ ${Array[$j]} -gt ${Array[$(($j+1))]} ]   #if  array number grater than next number swap number

           then                                          #store in array

           large=${Array[$j]}

           Array[$j]=${Array[$(($j+1))]}

           Array[$(($j+1))]=$large

           fi

         done

      done

      echo "Ascending order of array is ${Array[@]:1} "      #Display the given array in Ascending order

       ;;

   -d)

       for i in `seq $(($#-1))`                             #Case statement for descending order

       do

           for j in `seq 1 $(($#-$i-1))`

           do

               if [ ${Array[$j]} -lt ${Array[$(($j+1))]} ]    #Condition for the value less than next value

               then 

               small=${Array[$j]}                             #If less than swap the values and store it in array

               Array[$j]=${Array[$(($j+1))]}

               Array[$(($j+1))]=$small

               fi


           done

       done

       echo "Descending order of array is ${Array[@]:1}"      #Display ths descending order of array

       ;;

   *)

      echo "Error : Please pass the choice."

      echo "Usage : ./sorting -a/-d 4 23 5 6 3"

      ;;

      

  esac

  else

      echo "Error : Please pass the argument through command line."

      echo "Usage : ./sorting -a/-d 4 23 5 6 3"

  fi


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