Please do the following exercises

1. Use the "echo" command to print the line "Hello, World!".
2. Write a shell script to ask your name, program name and enrollment number and print it on the screen.
3. Write a shell script to find the sum, the average and the product of the four integers entered.
4. Write a shell program to exchange the values of two variables.
5. Find the lines containing a number in a file.
6. Write a shell script to display the digits which are in odd position in a given 5 digit number.
7. Write a shell program to reverse the digits of five digit integer.
8. Write a shell script to find the largest among the 3 given numbers.
9. Write a shell program to search for a given number from the list of numbers provided using binary search method.
10. Write a shell program to concatenate two strings and find the length of the resultant string.
11. Write a shell program to find the position of substring in given string.
12. Write a shell program to display the alternate digits in a given 7 digit number starting from the first digit.
13. Write a shell program to find the greatest common divisor (gcd) for the 2 given numbers.
14. Write a shell program to check whether a given string is palindrome or not.
15. Write a shell program to find the sum of the series sum=1+1/2++1/n.
16. Write a shell script to find the smallest of three numbers.
17. Write a shell program to add, subtract and multiply the 2 given numbers passed as command line arguments.
18. Write a shell program to convert all the contents into the uppercase in a particular file.
19. Write a shell program to count number of words, characters, white spaces and special symbols in a given text.
20. Write a shell program to find factorial of given number.
21. Write a shell script to find the average of the numbers entered in command line.
22. Write a shell script to sort the given numbers in descending order using Bubble sort.
23. Write a shell program to find the sum of all the digits in a given 5 digit number.
24. Write a shell script to generate fibonacci series.
25. Shell Script to check whether given year is leap year or not.
26. Shell Script to print alternate digit when a 7 digit number is passed.
27. Shell script to find average of number at given command line.
28. Shell Script to reverse a inputted string and show it.
29. Shell script to find occurrence of particular digit in inputted number.
30. Shell Script to find whether number given is even or odd.
31. Write shell script to find wheather a particular year is a leap year or not.
32. Write shell script to reverse a inputed string and show it.
33. Write shell script to count occurence of a perticular digit in inputted number.