UNIX for Beginners Questions & Answers

2019-03-20 13:00:00:000
2019-03-20 15:00:00:000
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 tr ' ' '\n' < File.txt

#!/bin/bash
date()
{
	echo "Please Enter Hours And Minites"
	echo "Enter Hours:"
	read hrs
	echo "Enter Minites:"
	read min
	DATE=$( zenity --calendar --date-format='%Y-%m-%d '$hrs':'$min':00:000' --display=:0 )	
}
session_number()
{
	echo "Please select Session Number:"
	session_option=("1" "2" "3" "4")
	select session_option in "${session_option[@]}" "EXIT"; do 
if [[ "$REPLY" -ge 5 ]]; then
	echo "Good Bye"
	exit 1
fi
	
	echo "-------------------------------------------------------------------"
	return

done
}
subjects()
{
subject_options=("Advanced .Net"
"Advanced Analytics"
"Advanced Java"
"Android"
"Application Security & Testing"
"Aptitude Skills"
"Asp.Net"
"Big Data Technologies"
"C Programming"
"C#"
"Cloud Computing and HPC"
"Computer Awareness"
"Computer Fundamentals"
"Core Java"
"Cpp"
"Data Structures"
"Data Visualization"
"DBT"
"Effective Communication Skills"
"HTML"
"Java Script"
"JavaScript Framework"
"Linux"
"MDP"
"Mock Examination"
"Networking"
"Operating System"
"PHP"
"Practical Machine Learning"
"Project"
"Python programming"
"R Programming"
"Software Engineering"
"Software Testing"
"Test"
"Upcoming Technologies"
"Web Development"
"XML")

select subject_options in "${subject_options[@]}" "EXIT"; do 
if [[ "$REPLY" -ge 39 ]]; then
	echo "Good Bye"
	exit 1
fi
	#echo "You picked $options which is options $REPLY"
	echo "-------------------------------------------------------------------"
	break

done
}
task()
{
	task_option=("THEORY" "LAB")
	select task_option in "${task_option[@]}" "EXIT"; do 
		if [[ "$REPLY" -ge 3 ]]; then
		echo "Good Bye"
		exit 1
		fi
		#echo "You picked $options which is options $REPLY"
		echo "-------------------------------------------------------------------"
		break
		done
}
present()
{
	make_one()
	{	
		for (( i=0;i<94;i++ )); do  # Total 94 studence are there!
				echo "1" >> data.txt #making all one & storing data into file	
		done
	}
make_one
echo "Please Enter Absent Students PRN Numbers:"
read line
read -r -a array <<< "$line"
	for element in "${array[@]}"
		do		
			sed -i $element's/1/0/' data.txt   #replacing absent number by zero
		done
}
date
echo "$DATE" >> data-attendence.txt
date
echo "$DATE" >> data-attendence.txt
session_number
echo "$session_option" >> data-attendence.txt
subjects
echo "$subject_options" >> data-attendence.txt
task
echo "$task_option" >> data-attendence.txt
present
cat data.txt >> data-attendence.txt
rm -rf data.txt
awk '{ print $0 }' data-attendence.txt >> output.xlsx                                                                            ############### at this Line change is required
sleep 10
#rm -rf data-attendence.txt
exit 1