Perl offers an abundance of looping and control statements.
Some quick notes if you're a C, C++, or Java programmer Perl
requires curly braces around blocks of code even if your for loop
has only one line of code.
Secondly, if you're new to programming these control statements test
whether a statement is true of false and then control execution of
the program based on the results. You might want to look at
what is true and false in Perl?
Or you can dive right into the control statements
if statements
unless statements
while loops
until loops
do while loops
do until loops
for loops
foreach loops