Notes

First Question:
#!/bin/bash
#taking inputs form the user
echo "Do you want to continue (y/n)"
read go
while [[ "$go" != "c" ]] #function where user may use yes or no
do

fck_length() #function of length
{

echo -c "Enter the lenght of the rectangle in cm: "

read -n10 l #taking the input of length which was insert by user

if [[ $l =~ ^[0-9]+.?[0-9]*$ ]]; then #taking only number from user not any alphabetical letter

echo "width of a rectangle is $l cm"

else


echo -c "(Enter number)"
fck_length #end function length
#read l
fi

}

fck_length

funcbreadth() #function of breadth
{
echo -n "Enter the breadth of the rectangle in cm: "

read -n10 b #taking the input of breadth which was insert by user

if [[ $b =~ ^[0-9]+.?[0-9]*$ ]]; then #taking only number from user not any alphabetical letter

echo "height of rectangle is $b cm"

else


echo -n "(Enter number)" #if user put alphabetical word then input may ask enter number to execute the program
fck_breadth
#read b
fi
}
funcbreadth


echo " Area of the rectangle is : $l * $b " #print the value of length and breadth of rectangle



Area=`echo $l * $b |bc` #calculate the rectangle in cm

echo "Area of the rectangle in cm = $Area cm" #show the final output of area of rectangle

I=`echo $Area / 2.54 |bc` #calculate the area of rectangle in inch

echo "Area of rectangle in inch = $I inch " #show the input in inch form
echo "Do you want to continue? (y/n)" #user can be continue or end the function
read go
done

Bubble sort:
#!/bin/bash
#bonus.sh

read_bbs_bibesh()
{
echo "Enter the number of salesperson:" #display message to put number salesperson
read bibesh #taking the value of number
if [[ $bibesh =~ ^[0-9]*$ ]] #check the value in number form
then
readn
else
read_bbs_bibesh #read the salesperson
fi # close for loop
}
readn()
{
for (( a = 0; a < $bibesh; a++ )) #satrting for loop for bibesh function
do
echo "Enter the name of sales person $a: " #display the name of sales
read salesname #read salesname
if [[ $salesname =~ ^[A-Z|a-z]+$ ]] #pressing the s key from keyboard to sort in alphabetical
then
nme[$a]="$salesname" #read the value of $a

echo "Enter quarterlysales of a person $a: " #enter the value of quartarley
read bibesh_quarter
if [[ $bibesh_quarter =~ ^[0-9]*$ ]] #check the number only while bibesh
then
bibesh_quarterly1[$a]="$bibesh_quarter" #check the value of quarterly
fi


else
readn
fi

if [[ $bibesh_quarter -gt 1000000 ]] #display the bonus
then
bonus[$a]="1,500"
elif [[ $bibesh_quarter -le 999999 && $bibesh_quarter -ge 1000000 ]]
then
bonus[$a]="750"
elif [[ $bibesh_quarter -le 99999 ]]
then
bonus[$a]="0"
fi
done
bibesh_display #save all file in savedarjun.txt
bibesh_display >> savebobs.txt
}

bibesh_display()
{
for (( a = 0; a < $bibesh; a++ )) #listing all salesname and sales quarterly
do
echo "Names:" ${nme[@]} #display name of sales
echo "Quarterlysales:" ${bibesh_quarterly1[@]} #displat quarterly sales
echo "Bonus:" ${bonus[@]} #display bonus
option
done

}
option(){
echo "Press S for sorting sales and A for alphabetic" #user need tp press s key for sorting sales and pressing a key from keybroad for sorting alphabetical order
read bibesh
if [[ $bibesh =~ ^[A]$ ]] || [[ $bibesh =~ ^[a]$ ]] #check bibesh is equal to output for alphabetical
then
bibesh_bubbleSorb1
elif [[ $bibesh =~ ^[S]$ ]] || [[ $bibesh =~ ^[s]$ ]] #using bubble sort for sorting sales
then
bibesh_bubbleSort
else
exit
fi
}
bibesh_bubbleSort() #using bubble sort for display the sorting sales and alphabetical order
{
n=${#bibesh_quarterly1[@]} #this line of code show sorting the salesperson and quarterly in sales
for ((k=0;k<$n;k++))
do
for ((l=0;l<$n;l++))
do
if [[ ${bibesh_quarterly1[l]} -lt ${bibesh_quarterly1[$((l+1))]} ]]
then
t=${bibesh_quarterly1[$j]}
quarterly[$l]=${bibesh_quarterly1[$((l+1))]}
quarterly[$((l+1))]=$t

b1=${nme[$l]}
name[$l]=${nme[$((l+1))]}
name[$((l+1))]=$b1
fi
done
done
echo ${nme[*]}
echo ${bibesh_quarterly1[*]}
}

bibesh_bubbleSort1()
{
n=${#nme[@]} #this line of code show sorting the salesperson and quarterly in alphabetical order
for ((b=0;b<$n;b++))
do
for ((l=0;l<$n;l++))
do
if [[ ${nme[l]} > ${nme[$((l+1))]} ]]
then
t=${nme[$l]}
name[$l]=${nme[$((l+1))]}
name[$((l+1))]=$t

b1=${bibesh_quarterly1[$j]}
quarterly[$j]=${bibesh_quarterly1[$((l+1))]}
quarterly[$((l+1))]=$b1
fi
done
done
echo ${nme[*]} #display salesname and quarterly in decending sales form
echo ${bibesh_quarterly1[*]} #display salesname and quarterly in aplphabetical order
}


bibesh_conti()
{
echo "Do you want to bibesh_conti?Press[Yy]" #display the message user can be bibesh_conti or not
read bibesh_conti
if [[ $bibesh_conti =~ ^[Y]$ ]] || [[ $bibesh_conti =~ ^[y]$ ]]
then
clear
Salesperson
else
exit
fi
}
read_bbs_bibesh


Last One:
#!/bin/bash

echo "1: bibesh_bakup" #display the bibesh_bakup input
echo "2: bibesh Management" #display the bibeshmanagement input

while [ 1 ] #bibesh need to press 1 key for bibesh_bakup programmibb code or execute the bibesh_bakup code
do

read bibesh_menu #create a bibesh_menubar for bibesh_bakup
case $bibesh_menu in
1)
echo "bibesh_bakup for Zip" #dispaly the zip format how to create zip file
echo "a: bibesh_bakup now" #bibesh can be archieve in manal form usibb tar command
echo "b: set bibesh_bakup timer " # or bibesh can be archieve in form of automatic bibesh_bakup usibb corntab

while [ 1 ] #usibb while loop
do
read bibesh_bakup #read bibesh_bakup
case $bibesh_bakup in #usibb case
a) #pressibb a key for bibesh_bakup now
sudo tar -cvpzf bibesh_bakup.tar.gz /root #usibb tar command for manual bibesh_bakup
;;
b) #pressibb b key for automatic bibesh_bakup
echo "This is for scheduled bibesh_bakup"
echo -n "Enter the minute Example:Enter */1 for every minute:" #time set in minute
read a
echo -n "Enter hour (*") from 0-23:" #time set in hour
read b
echo -n "Enter day of month (*) from 0-30:" #time set in hour
read c
echo -n "Enter month (*) from 1-12:" #time set in month
read d
echo -n "Enter day of week (*) from 0-7 as 0 beibb monday:" #time set in ween as beibb monday
read e
echo -n "Name of the bibesh_bakup file:" #create folder name
read f
echo -n "path of bibesh_bakup file (example:new/newfolder):" #create path for save thr bibesh_bakup file
read g
echo -n "Name of bibesh_src:" #name of bibesh_src of bibesh_bakup file
read bibesh_src

echo "$a $b $c $d $e tar -cpzf ~/$g/$f /root/$bibesh_src " >> crontab.txt
crontab crontab.txt #save in zip file
;;
End)
break
;;
*)
echo "Choose option a-b or "End" to exit"
;;
esac
done
;;
2)
echo "bibesh Mabbement" #display the bibeshmanagement
echo "a: Add new group" #print add new group
echo "b: Add new bibeshs" #print add new bibeshs
echo "c: bibesh_delete bibeshs" #print bibesh_delete bibeshs
echo "d: bibesh_delete group" #print bibesh_delete group
echo "e: Edit bibeshs" #print edit bibeshs
echo "f: Edit groups" #print edit group
echo "End: To exit" #end to exit the progarm
while [ 1 ]
do
read bibesh #read bibesh
case $bibesh in #usibb case
a)
echo "Add a new Group"
echo -n "Enter group name:"
read bb #read group name
sudo addgroup $bb
;;
b)
echo "Add a New bibesh"
echo -n "Enter bibesh name:"
read bibeshADD #create bibeshadd
#echo -n "Enter password:"
#read P
sudo bibeshadd -m $bibeshADD #create bibeshadd
sudo passwd $bibeshADD #password for bibeshadd
;;
c)
echo "bibesh_delete a bibesh"
echo -n "Enter bibeshname to be deleated:"
read bibesh_delete #read bibesh_delete
sudo bibeshdel $bibesh_delete #bibesh can be bibesh_delete
;;
d)
echo "bibesh_delete a Group"
groups
echo -n "Name of the group to be bibesh_delete:"
read bibesh_delete
sudo groupdel $bibesh_delete #group can be bibesh_deleted
;;
e)
echo "choose to edit bibeshs"
echo -n "Enter name of group to view it:"
read editbibesh
sudo passwd $editbibesh #bibesh can be edit of password
;;
f)
echo "choose to edit groups"
echo -n "Enter groupname to add bibesh:"
read editgroup
echo -n "Enter bibeshname to add bibesh in group:"
read addbibeshibbroup #read add bibesh in group
sudo bibeshmod -a -G $editgroup $addbibeshibbroup #create bibesh in group
;;
End)
break
;;
*)
echo "choose option from a to f(a-f) or "Exit" to exit" #end the program
esac
done
;;
End)
break
;;
*)
echo "Choose options 1-2 or "End" to quit" #end the program
;;
esac
done