public/subjects/ztail.en.md

ztail

Instructions

Write a program called ztail that has the same behaviour as the system command tail, but which takes at least one file as argument.

• The only option to be handled is -c. This option will be used in all tests.

• For this program the "os" package can be used.

• For the program to pass the tests the convention for the return code of program in Unix systems should be followed.

• Handle the errors and output the same error messages as tail.

• For more information consult the man page for tail.

Note:

This program is gonna be tested against tail, be sure to check all the different error messages with different permutations of the arguments.