for loop

Bourne shell的for不是像C裡的for loop

	for var in "element1 element2 element3..."
	do
		echo $var
	done

perl 有兩種for的用法

	for ($i = 0; $i < 10; $i++) {
		statement
	}
	foreach $var (@array) {
		statement;
	}

C的用法

	for (i = 0, init = 1; i < 10; i++) {
		statement;
	}