Write a shell script to find the reverse of a string?



echo “enter the string”
read str
len = `expr $str /wc –c`
while [ $ len != 0 ]
do
temp = ` expr $str / cut –c  $len`
revstr = $revstr $temp
len = `expr $len -1`
done
echo $ revstr
OUTPUT:
enter the string
hello                          
revstr     olleh

Comments

Post a Comment

Popular posts from this blog

Write a program to add two number using inline function in C++?

#include<iostream.h> #include<conio.h> class bca {   public:   inline int sum(int x, int y)   {   return(x+y);   } }; int main() { clrscr(); int r,a,b; bca obj; cout<<"enter two integers :"<<endl; cin>>a>>b; r=obj.sum(a,b); cout<<" the sum of two integers is :"<<r<<endl; getch(); return 0; }   OUTPUT:- enter two integers :    3    6 the sum of two integer is :   9  
Read more

Traversing of elements program with algorithm and Flowchart

Image
ALGORITHM VARIABLES: §   i:      loop counter of array. §   A:    array name. §   LB: lower bound. §   UB: upper bound. ALGORITHM: STEP 1:         set i =LB STEP 2:         repeat steps 3 & 4                            While i<=UB STEP 3:         apply process to A[i] STEP 4:         i = i+1            STEP 5:         exit EXPLANATION: §   To traverse the elements of the array, firstly set the loop counter ‘i’ equal to last element of the array called the LOWER BOUND. §   Now, repeat step 3 & 4 for accessing all the elements of the array until loop counter ‘i’ is not less than or equal first element of array. §   Now, after checking the above condition, the whole process will repeat for all the elements of array. §   After applying process upon a[i], increment the loop counter by 1, until the condition is not satisfied. IMPLEMENTATION
Read more