PART I : MCS-041. (b) Use head and tail in a pipeline to display lines 25 through 75 of a file? $Head 25 file name $Tail 75 File name

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1 Course Code : MCS-045 Course Title : UNIX an DBMS Lab Assignment Number : MAC(4)/045/Assign/06 PART I : MCS-041 Ques 1 : Write the Unix commands for the following: (a) Use the more command, and a pipeline to display lines 25 through 75 of a le? $LS-L More File name (b) Use head and tail in a pipeline to display lines 25 through 75 of a le? $Head 25 le name $Tail 75 File name (c) To search the /etc/passwd le for the lines containing any input string given bu the user. Sgrep etc/passwd File name (d) To see the lines in /etc/passwd that begins with the character a. $grep-1 le name (e) List all the les in the /tmp directory owned by the user root. $pwd (f) To see a complete listing of all the processes currently scheduled. $LS-T (g) Use the ps command, and the grep command, in a pipeline to nd all the processes owned by you. $nd le name $PS-1 = $grep le name (h) To force termination of a job whose process ID is given. $Ps The output o Ps shows the PID for the two processes being run by us when ps were executed. The output also shows the terminal form, which the processes were launched. The time that has elapsed since the processes were launched and the names of the processes. Ps is designed to display only the processes that are running at your terminal.

2 (i) Sort the /etc/passwd le, place the results in a le called paswd, and trap any errors in a le called err with the command. $ tr old set of character new set character <le name (j) To sort a text le containing the names of 10 students in alphabetical order and place the results in le called sortedle. $ Sort le name -c (check whether specic le is according to the given order) -m (It merge the previously sorted le and display standard o/! ) -u (convert lower to upper) Ques: 2(a) Write a shell program to count the number of words, number of characters, number of vowels, number of special symbols, end of line characters and blank-spaces present in a text le. Redirect the output to a le called as output. Ans: str= i=0 temp = len= 0 count = 0 echo Enter any string read str len = echo $str we e len = expr $len -1 while [$i-le $len ] do temp = echo $str cut c $i if [ $temp-eq 65 o $temp eq 69 o $temp eq 73 o $temp eq 79 o $temp iq 85 then count = expr$count = 1 I = expr $i + 1 Done Echo Numebr of Vovels in the string are: $count Ques 2(b) Write a shell script to take username as an argument and check whether s/he has logged in or not every 60 seconds for 5 minutes. Ans: res = 0 while [$res eq 0]

3 do echo Enter any letter. Read ltr Echo $ltr grep [a-z] >/dev/null If [S? eq 0] Then res =1 else echo You did not entered a letter, Please enter a letter\(a to z\) done echo Files starting with letter\($ltr\) in a directory\: $PWD Is $1 grep ^$ltr Ques 2(c) Write a shell script to display the number of les and their details in the current directory, whose lenames are starting with the alphabet given as an argument. Ans: if S = -eq1] ten terminal = tty exec<s1 flag = 1 nol-o now = o while read line do nol= expr &nol+1 set -- &line now = expr $now +$# done PART II: MCS-043 Ques:1 Design a database for maintaining the details of shows and ticketing for the shows of a Multiples. New perform the following activities for the system above: (a) Create the database (b) Write the following queries using SQL (i) (ii) Find the details of the movies whose shows are not yet full. Find the details of the movies that had been screened at least one year earlier too.

4 (iii) Find the names of those movies that have an overall sate of 60% of capacity on all days of screening. (iv) Create a view of the movie for the manager showing overall performance of the day for each movie. (c) Create the procedures for the queries (i) to (iii) above (d) Perform the following activities: (i) Create a trigger that prints the daily catalog on change of a movie. (ii) Create a trigger that increases the price of a specic movie by a certain percentage on a specic weekend. (e) Use the movie poster (picture) as one of the elds in the movie table. (f) Create a transaction that nds the total of each movie and prints the overall revenue. (g) Create two different types of users: the rst user-a manager who can see reports and change the movie and its timing: and second user who sells tickets. Figure Tables: Cinema Hall Name Location Capacity Movies Movie# Name DateRelease Date showing Shows Movie# Date Showtime Attendance%

5 Table description: Cinema Hall; In the class Cinema Hall a record about each cinema is kept. Each item is assigned a unique id. Besides this it also has Title, location, capacity etc. the functions like add, delete or modify item, keeping record of units left in the store etc are used. MOVIE: In this class various information about movie is kept. Movield, name, DateRelease, ate showing etc are recorded. The functions like add, delete or modify movie information are used. SHOWS: IN this class various information about shows is kept. Movie#, Date, showtime, attendance etc are recorded. The functions like add, delete or modify employee information are used. SELECT * FROM MOVIE WHERE Movie# in (SELECT Movies FROM SHOWS WHERE Attendance<100%) SELECT * FROM MOVIE WHERE DateShowing < SELECT Name FROM MOVIE.SHOWS WHERE Attendance%> 60 MOVIE.movie# = SHOWS.movie# SELECT * FROM MOVIE CINEMA HALL ID Capacity Location Name Rohini m2k Narayana PVR ID Name Released TimeShowing 1. Kabhi Alavida Na Kehna 25/8/ :30:00 AM

6 2. Lage Raho MunnaBhai 26/10/ :30:00 PM