Section $3$:

create a script name copy. sh that copies all files with extension $.$txt from your home directory

automatically to a directory in $/$home$/$ec$2-$user$/$homebackup that is first created by the same

script.

Create a script that will ask you for your username and password. It will read your username and

password from the standard input and evaluate it like follow:

If username$=$zock and password$=$redhat then print valid user

If not print invalid user.

Create a script that will ask for your magical numbers. If your magical number id $15$ or $45$ then

print "you won the game" if not print "you lost the game"

Write a script that will ask for your firstname and your lastname, then it will print your fullname

Write a script that will set two variables $A=10,B=20$ and display the result of $A+B.$

Create a script which will print the numbers $1-10$ each on separate line.

Write a script which will take a single command line arguments $($a directory$)$ and will print each

entry in that directory. If the entry is a file, it will print its size. If the entry is a directory, it will

print how many items are in that directory.

Create a simple script that print your current working directory and list its contents.

$"$ Create a script that will ask for your firstname and print "hello