THIS MUST BE DONE IN C++. PLEASE DO BOTH TASKS. DO NOT LEAVE OUT WRITE() OR COPY OTHER CODES. AN ERROR MESSAGE MUST BE PRESENT FOR EVERY SINGLE COMMAND, IN BOTH TASKS. THAT MEANS 4 ERROR MESSAGES PER TASK. C++ ONLY. as simple as possible please. if any direction is followed incorrectly (as all other postings of this are), you'll get a downvote. I appreciate the help, but it doesn't help if anything's left out.

Task 1(50 points ) Implement a program to display a file's contents. It should be similar to the UNIX cat command when given a single file. Name your command show. It should have the following syntax: $./show fileName The above program displays the contents of the file named fileName. Each system call must have error checking, and print an error message if it occurs. You must use open(), read(), write() and close() system calls. 10 points each. Task 2(50 points ) Modify the above program to implement a program called body similar to UNIX commands head or tail. It should print from the mth line to the nth line of the given file. It should have the following syntax: $./ body m n fileName The above program displays the contents of the file named fileName, from line m to line n. Each system call must have error checking, and print an error message if it occurs. You must use open (), read (), write(), and close() system calls. 10 points each