Write script/command to:-       

		Script/Command
1	Let the System know that the following script is a bash script.
2	Make VAR an unchangeable and undeletable Variable.
3	Access 8th Argument passed to the script.
4	Print Process ID of the current script.
5	Sleep the system for 2 seconds
6	Print “I have $200”
7	Print all the elements of an array without using loops.
8	Print filename of the current script.
9	Print the exit status of the previous command
10	Print all environment variable