Linux Basics Micro Project

suggested-1.sh

# Write a shell program to do the following
#   1. Take first name as input from user
#   2. Take second name as input from user
#   3. Display both names individualy
#   4. Display the message "Welcome $first_name and $second_name"
#   5. Redirect this output to a file

(
    # Input First Name
    echo -n "Enter first person's name: " 
    read first_name
    echo "$first_name" # Print just name

    # Input Second Name
    echo -n "Enter Second person's name: "
    read second_name
    echo "$name2" # Print just name

    # Display both names together
    echo "Welcome $first_name and $second_name"
) | tee logfile.txt # log to a file and output to console

suggested-2.sh

# Write a shell script to Calculate Gross Salary of Employee.
# ( HRA = 20% of basic salary, DA = 50% of basic salary )

# constants
HRA=0.2 # 20% House Rent Allowance
DA=0.5  # 50% Daily Allowance

echo -n "Enter Basic Salary: "
read basic_salary

if [[ ! $basic_salary =~ ^[0-9]+$ ]] ; then
    >&2 echo "Please enter a number!"
    exit -1
fi

gross_salary=$((
    $basic_salary +
    $(echo "($basic_salary*$HRA)/1" | bc) +
    $(echo "($basic_salary*$DA)/1" | bc)
))

echo "Gross Salary: $gross_salary"

suggested-3.sh

# Write a shell program for the following
# 1. Execute commands to add "Hello GPP" 5 times in a file in vi editor
# 2. Execute a command to sort a file in alphabetical order with numbered list

for i in {1..5}
do
    echo "Hello GPP" >> my_file.txt
done

echo -n "do you want to open file in vi? [y/N]: " 
read res

if [[ $res == "y" || $res == "Y" || $res == "Yes" || $res == "yes" || $res == "YES" ]]
then
    vi my_file.txt
fi

suggested-4.sh

# Display contents of two files in stored format with numbers to each line

if [[ $# -lt 2 ]] 
then
    echo "Invalid Usage: $0 file1 file2"
    exit -1
fi

cat -n $1 $1

suggested-5.sh

# Write a program to find misspelled words from two files and write the output to a new file

if [[ $# -lt 2 ]] 
then
    echo "Invalid Usage: $0 file1 file2"
    exit -1
fi

spell $1 $2 | tee wrong-spellings.txt || echo "Spell Not installed"