Shell Programs to be exercised

PROGRAM NUMBER	PROGRAM  NAME
1	Write a shell script to check whether a particular user has logged in or not.
2	Write a shell script to accept the name of the file from standard input and perform the following tests on it a)      File executable b) File readable c) File writable d) Both readable & writable
3	Write a shell script which will display the username and terminal name who login recently in to the unix system.
4	Write a shell script to find no. of files in a directory.
5	Write a shell script to check whether a given number is perfect or not .
6	Write a Shell program to check whether given number is prime or not.
7	Write a shell script which will display Fibonacci series up to a given range.
8	Write a shell script for concatenation of two strings
9	Write a Shell program to reverse a given string
10	Write a shell script to display check whether the given string is palindrome or not.
11	Write a shell script to accept student number, name, marks in 5 subjects. Find total, average and grade. Display the result of student and store in a file called stu.dat Rules: avg>=80 then grade A Avg<80&&Avg>=70 then grade B Avg<70&&Avg>=60 then grade C Avg<60&&Avg>=50 then grade D Avg<50&&Avg>=40 then grade E Else grade F
12	Write a shell script to accept employee number ,employee name basic. Find DA,HRA,TA,PF using following rules.  Display employee number , employee name, basic, DA,HRA,PF,TA,GROSS SAL and NETSAL. Also store all details in a file called emp.dat Rules: HRA is 18% of basic if basic > 5000 otherwise 550 DA is 35% of basic PF is 13% of basic IT is 14% of basic TA is 10% of basic.
13	Write a shell script to demonstrate  break and  continue statements.
14	Write a shell script to satisfy the following menu options a. Display current directory path b. Display today’s date c. Display users who are connected to the unix system d. Quit
15	Write a Shell program to find gcd of 2 numbers
16	Write a shell script to generate the mathematical tables.
17	Write a shell script to check whether the given number is Armstrong or not
18	Write a shell script to check whether a number is palindrome or not .
19	Write a shell script to find the value of ncr
20	Write a shell script which will greet you “Good Morning”, ”Good Afternoon”, “Good Evening” and “GoodNight” according to current time.
21	Write a shell script to sort the elements in a array using bubble sort technique.
22	Write a shell script to find smallest and largest element in a array.
23	Write a shell script to search given number using linear search.
24	Write a shell script to search given number using binary search.
25	Write an awk program to print sum, avg of students marks list.
26	Write an awk program to display students pass/fail report.
27	Write an awk program to count the no. of characters in a given file

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