Here are is a hint -- DOS format usually means that each line ends with a carriage return AND a line feed. Search for those endings and you will know if your file is a DOS format file.
The other two tasks are way too basic to merit hints... hinting would give away the answer.
In reply to Re: Text analysis exam
by punkish
in thread Text analysis exam
by joseromero
| For: | Use: | ||
| & | & | ||
| < | < | ||
| > | > | ||
| [ | [ | ||
| ] | ] |