// to complete the job: Which files to work on, which pattern to look for, and how to output. <br/>
// Besides just printing all the matching lines, we will also offer to count them, or alternatively to sort them.
#[derive(Clone,Copy)]
// to complete the job: Which files to work on, which pattern to look for, and how to output. <br/>
// Besides just printing all the matching lines, we will also offer to count them, or alternatively to sort them.
#[derive(Clone,Copy)]