Perl Program Control

Provides information about Perl statements which are used for program control including the if statement, for statement, while statement, and others.

If Statements

The if statement uses the following comparisons:

An example:

if ($thisnum == 4)
{
	print $msg1, "\n";
}

For Statements

The following statement counts from 1 to 5 print the results on a new line for each loop.

for ($count = 1; $count < 5; $count++)
{
	print $count, "\n"; 
}

While Statements

$count = 0;
while ($count < 7 )
{ 
	print $count, "\n";
	$count++;
}

Foreach statements

This statement is used to operate on arrays as in the following example.