collegeCurriculum

Sem 4

Record Programs

Web Development Record Programs

Using HTML, CSS, JavaScript and PHP.

  1. HTML webpage for college (using lists)
  2. HTML webpage to display Time Table (using table)
  3. Registration Form using HTML and CSS
  4. JavaScript program to calculate sum and product of two numbers using functions
  5. JavaScript program to illustrate various JS Events
  6. JavaScript program to illustrate JS validations
  7. PHP program to find factorial
  8. PHP program to find length, reverse, uppercase and lowercase of a string
  9. PHP program to validate email
  10. PHP program to validate age(b/w 18 and 40) and password(length > 8, contain numbers and special characters)
  11. PHP program to validate name, address, dob, gender & mobile of an Application Form
  12. PHP program to record student details if and only if the student is 18 years old or more
  13. PHP program to insert records of employee and display the record
  14. PHP program to search an employee with name and update the details
  15. PHP program to insert book(id, title, author, price) and to display all distinct titles, when clicked on the title, it should show a page with the same book details
  16. Create a table login(username, password, role, visit_count), role must be either admin or user. PHP program to login with valid username and password, and update visit_count on each visit. Redirect to different pages based on the role

Linux Record Programs

Note: The scripts given here are for bash interpreter

Bash Commands

Bash commands README

Bash Scripts

The curriculum follows the following syntax to execute the scipts.

sh PROGRAM.sh

  1. Write a shell program to add 2 numbers using command line arguments

  2. Write a shell program to find the largest among 3 numbers

  3. Write a shell program to display welcome message according to time

  4. Write a shell program to check whether two strings are equal or not, length is zero or not, and concatenate the two strings

  5. Write a shell script to check whether a file exists or not. If the file exists then check whether it is an empty file, ordinary file, directory, readable, writable, and executable

  6. Write a shell program to get two file names as command line arguments and perform comparison of these two files

  7. Write a shell script to get three file names and a directory name as command line arguments and create the three files and the directory in the current working directory

  8. Write a menu driven shell program to perform arithmetic operations

  9. Write a shell script to find Fibonacci series upto a given number

  10. Write a shell program to find the factorial of the given number

  11. Write a shell program to check if the given number is palindrome

  12. Write a shell program to find the sum of even and average of odd digits of a given number

  13. Write a shell script to add n user given values

  14. Write a shell program to check whether the number is prime

Previous Year Lab Questions

Linux

date

echo $PS1
echo $PS2

echo $USER #or whoami

echo $HOME

ls abc*

echo $PATH

factor <integer> #factor 50


subdirectory="$1"

mkdir "$subdirectory"

for file in *; do
  if [ -f "$file" ]; then
    echo "Do you want to copy '$file' to '$subdirectory'? (y/n)"
    read answer

    if [[ "$answer" == "y" || "$answer" == "Y" ]]; then
      cp "$file" "$subdirectory"
      echo "Copied '$file' to '$subdirectory'."
    fi
  fi
done


touch f1 f2 f3 f4 f5

ls -l

chmod u+x *

df #or du

bc
expr 2 + 4 #space needed between operands and operator
factor 50

uname -a

diff file1 file2


vi file1
#i for insert mode and type two lines, wq in command mode(esc Shift+;) to save and exit

vi file1
#:1,2co 3 
# or :1,2co $

#2dd

#5dw

#x

#:q!

vi file2
#similar steps as above


mkdir Linuxlab
cd Linuxlab
touch f1 f2 f3 f4 f5

cd ..
cd Linuxlab
cd ..

ls a*

echo $PATH

echo $HOME

head -10 file

factor 50


echo $PATH

echo $SHELL
cat /etc/shells

cat | tee -a file1.txt file2.txt file3.txt

cat file

mkdir newdir
cp file newdir/file

cp file newname

pwd


#i)
vi file
# enter insert mode using 'i' and write
:wq

vi file
:1co $put

:2dd

dw

:q!

#ii)
head -2 file

#iii)
tail -5 file


#easy way
ls
head -3 *

#hard way (if examiner doesn't accept)
for file in *; do
   if [ -f "$file" ]; then
      echo "File: $file"
      head -3 "$file"
   fi
done

#or
find . -maxdepth 1 -type f -exec head -3 {} +


show_menu() {
  echo "1. Copy File"
  echo "2. Edit File"
  echo "3. Append to File"
  echo "4. Rename File"
  echo "5. Exit"
  echo -n "Choose an option [1-5]: "
}

while true; do
  show_menu
  read choice
  case $choice in
    1)
      echo -n "Enter source file path: "
      read src
      echo -n "Enter destination file path: "
      read dest
      cp "$src" "$dest"
      ;;
    2)
      echo -n "Enter file path to edit: "
      read file
      vi "$file" 
      ;;
    3)
      echo -n "Enter file path to append to: "
      read file
      echo "Enter text to append (Ctrl+D to finish):"
      cat >> "$file"
      echo "Text appended."
      ;;
    4)
      echo -n "Enter current file path: "
      read old_name
      echo -n "Enter new file path: "
      read new_name
      mv "$old_name" "$new_name"
      ;;
    5)
      echo "Exiting..."
      exit 0
      ;;
    *)
      echo "Invalid option. Please choose a number between 1 and 5."
      ;;
  esac
done



echo -n "Enter the path of the first file: "
read file1
echo -n "Enter the path of the second file: "
read file2

mkdir -p copied_files

if cmp -s "$file1" "$file2"; then
  echo "Files are the same."
  cp "$file1" copied_files/
else
  echo "Files are different."
  cp "$file1" copied_files/
  cp "$file2" copied_files/
fi


vi test.txt 
:wq

chmod o+w test.txt

expr 50 + 30

echo $USER #or whoami

cd ..

echo $PATH

ls > list.txxt


cat >> count.txt
#ctrl + d to exit


show_menu() {
  echo "1. Display Today's Date"
  echo "2. Display Current User"
  echo "3. Display Current Working Directory"
  echo "4. Exit"
  echo -n "Choose an option [1-4]: "
}

while true; do
  show_menu
  read choice
  case $choice in
    1)
      echo "Today's Date: $(date)"
      ;;
    2)
      echo "Current User: $(whoami)"
      ;;
    3)
      echo "Current Working Directory: $(pwd)"
      ;;
    4)
      echo "Exiting..."
      exit 0
      ;;
    *)
      echo "Invalid option. Please choose a number between 1 and 4."
      ;;
  esac
done



pwd

cd
mkdir subdir
cd subdir
touch f1 f2 f3

cd ..

rm -rf subdir #or delete the individual files inside the directory with rm command and use rmdir subdir

echo $PATH

echo $SHELL

cat /etc/shells


vi
# i to insert mode and type 8 lines

:1,3co 4

dd
:1,5d

dw

:/shone
dw

:w newfile.txt
:q

vi newfile.txt
:q!


sum_of_two_numbers() {
    echo "$(( $1 + $2 ))"
}

num1=$1
num2=$2

sum=$(sum_of_two_numbers "$num1" "$num2")

echo "The sum is $sum"

\

if cmp -s $1 $2; then
  echo "Same file"
else
  echo "Different file"
fi


vi test
# i to insert mode and enter your name
:wq

vi test
# i to insert mode and add some more names

# j to go down one line by line
o # to insert below
O # to insert above


number=$1

if [ $((number % 2)) -eq 0 ]; then
    echo "$number is even."
else
    echo "$number is odd."
fi



echo "Enter the subdirectory name: "
read subdir

echo "Contents of the directory '$subdir': "
ls "$subdir"

echo "Number of entries starting with 'ab': $(ls $subdir/ab* | wc -l)"


echo "Enter the first file name: "
read file1

echo "Enter the second file name: "
read file2

if cmp -s "$file1" "$file2"; then
    echo "The files are the same. Deleting '$file2'."
    rm "$file2"
else
    echo "The files are different."
fi


echo "Enter a limit: "
read limit

sum=0
count=1

while [ $count -le $limit ]; do
  echo "Enter number: "
  read num
  sum=$(($sum + $num))
  count=$(($count + 1))
done

echo "Sum = $sum"


echo "Enter three numbers: "
read a
read b
read c

if [ $a -gt $b -a $a -gt $c ]; then
   echo "$a is the greatest"
else
  if [ $b -gt $a -a $b -gt $c ]; then
    echo "$b is the greatest"
  else 
    echo "$c is the greatest"
  fi
fi


sort -r file.txt


#!/bin/bash

while true; do
    echo "Menu:"
    echo "A) Check if a file exists"
    echo "B) Check if a file is readable"
    echo "C) Check if a file is writable"
    echo "Q) Quit"
    
    read -p "Enter your choice: " choice
    
    case $choice in
        A)
            read -p "Enter the file name: " filename
            if [ -e "$filename" ]; then
                echo "The file '$filename' exists."
            else
                echo "The file '$filename' does not exist."
            fi
            ;;
        B)
            read -p "Enter the file name: " filename
            if [ -r "$filename" ]; then
                echo "The file '$filename' is readable."
            else
                echo "The file '$filename' is not readable."
            fi
            ;;
        C)
            read -p "Enter the file name: " filename
            if [ -w "$filename" ]; then
                echo "The file '$filename' is writable."
            else
                echo "The file '$filename' is not writable."
            fi
            ;;
        Q)
            echo "Exiting the program."
            break
            ;;
        *)
            echo "Invalid choice. Please select a valid option."
            ;;
    esac
    echo
done

PHP

PHP lab questions are similar to PHP record programs.

Below are some useful PHP methods that may help in lab exams.

// Explode
$string = "apple,banana,cherry";
$array = explode(",", $string);

print_r($array); // Output: Array ( [0] => apple [1] => banana [2] => cherry )


// Implode
$array = ["apple", "banana", "cherry"];
$string = implode(", ", $array);

echo $string; // Output: apple, banana, cherry


// For each
foreach ($array as $value) {
    // Code to execute for each element
}


// Using intval()
$intValue = intval("123");
echo $intValue; // Output: 123


// Using floatval()
$floatValue = floatval("123.45");
echo $floatValue; // Output: 123.45