Write a program that reads a fi le foo, checks the line length and saves the lines in foo1 or foo2 depending on whether the line length exceeds 80 or not. Write a program that accepts an integer n and...

Write a program that reads a fi le foo, checks the line length and saves the lines in foo1 or

foo2 depending on whether the line length exceeds 80 or not.

Write a program that accepts an integer n and a fi lename as command-line arguments to

print the last n lines of a fi le (like the UNIX tail command). (HINT: First count the number of

lines in the fi le.)