Viewing Files: It is a common task to view the contents of a plain text file. Several programs can

do this:

$$ cat short for concatenate

$$ more a program to display a page of text at a time

$$ less a program to display a page of text at a time, with more features than more

$$ head displays several lines from the start $($head$)$ of a file

$$ tail displays several lines from the end $($tail$)$ of a file

Look at the man page for these five tools and answer these questions:

a$.$ How would you display the first $5,$ and only $5,$ lines of a file?

b$.$ How would you display the last $100$ lin