Answer:
Kindly check explanation
Explanation:
Shell scripts are used for writing codes which may involve writing together a complete set of task in a single script. These set if codes or instructions could be run at once without having to run this program one after the other on a command line. This way it avoid having to repeat a particular task each time such task is required. As it already combines a sequence of command which would or should have been typed one after the other into a compiled single script which could be run at once.
A shell script could be written for a control flow construct :
if [expression]
then (command 1)
else (command 2)
.....
