Sams Teach Yourself Perl in 24 Hours

Workshop

Quiz

1:	To fetch an HTML file from a Web server, what should you do? Use LWP. Open a socket to that system and retrieve the data. Use `lynx –dump` or `netscape –print`.
2:	If the LWP::Simple module's get function fails, what does it return? The error message (that is, "No Document") The empty string (that is, "") undef

Answers

A1:	a. Although b and c would work, they're not terribly robust or easy to use.
A2:	c. The answer was explained in the analysis following Listing 24.2.

Activities

• You can easily create bar graphs shown for the poll results in Figure 24.4, even without using a graphics module. To do so, you need a 1×1 (or very small) .gif file of the correct color. To make the bar, simply display the .gif file with the appropriate height ...