LABORATORY-2

Shell-Scripting

All 18 Shell Scripts in one page




Laboratory - Questions(18)

Question-1. Write a menu driven shell script for the following options:
(i) Merging the contents of two files into another.
(ii) Searching a pattern from a file.
If the user gives some invalid choice, it will prompt “Invalid option” message.

Question-2. Write a shell script to check whether a given string is palindrome or not.

Question-3.Write a shell script that will display some desired number of lines starting from a specified line of a given file. User must interactively supply the file name, starting line number and number of lines to be displayed.

Question-4.Write a menu driven shell script for the following options:
(i) Number of presently active users
(ii) Displaying some desired number of lines from top of a file.
(iii) Updating the access time of a given file to current time.
(iv) If the user gives some invalid choice it will prompt “Invalid option” message.


Question-5.Write a shell script to sort some given numbers in descending order.

Question-6.Write a shell script to find the maximum and minimum of some given numbers.

Question-7.Write a shell script to create two infinite processes in background and then prematurely terminate each of these infinite processes.

Question-8.Write a shell script to implement Bubble Sort. Print the contents of the sorted array without using any loop.

Question-9.Write a shell script to delete an element from a specific position of an array

Question-10.Create a file that contains the ROLL NUMBER, NAME, CITY of students of a class in sorted order with respect to Roll Number.
Now write a menu driven shell script that has the following options:
a. Display the contents of whole file.
b. Display the information of a student with specific Roll Number supplied by the User.
c. Delete the entry of a student from the file with a specific Roll Number supplied by User.
d. Add a new entry in the file.
e. Update an entry of a student with a specific Roll Number supplied by the User.


Question-11.Write a shell script to check for an Armstrong number.

Question-12.Write a shell script to print all possible combinations of 3 numbers.

Question-13.Write a shell program to find the position of substring in given string.

Question-14.Write a shell program to find the gcd for the 2 given numbers.

Question-15.Write a shell program to count number of words, characters, white spaces and special symbols in a given text

Question-16.Write a shell program to find factorial of given number.

Question-17.Write shell script to generate fibonacci series upto "n"

Question-18.Write a shell script to sort the given numbers in descending order using Bubble sort.

Solutions:

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