Q&A

Q1:I'm familiar with another programming language, C, which has a switch (or case) statement. Where is Perl's switch statement?
A1: Perl doesn't have one! Perl provides such a variety of tests that figuring out the best syntax for a switch statement is nightmarish. The simplest way to emulate a switch statement is as follows: 
if ($variable_to_test == $value1) {
    statement1;
} elsif ($variable_to_test == $value2) {
    statement2;
} else {
    default_statement;
}

The online syntax manual page—which you can view by typing perldoc perlsyn at a command prompt—contains many clever examples of how to emulate a switch statement in Perl, some with very switch-like syntax.

Q2:How many for (while, if) blocks can I nest inside each other?
A2: As many as you ...

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